Robotic Gearbox Early 2000 corporation Ford developed a robotic gearbox (Ford Durashift EST), based on a conventional iB5 manual gearbox from focus1,2,
Robotic Gearbox
At the beginning of 2000 corporation Ford developed a robotic gearbox (Ford Durashift EST), based on a conventional iB5 manual gearbox from focus1,2, adding an electronic unit to it - an ECU “brains” with an electro-hydraulic clutch and an actuator for selecting and shifting gears (two electric motors).
The Durashift iB5 robotic gearbox is installed on Fusion, Fiesta, Mazda 2.
Clutch actuator with integrated transmission control module
The clutch actuator consists of: a DC electric motor, an actuating mechanism for an integral clutch master cylinder and an integral displacement sensor that measures the movement of the actuator.
The clutch actuator takes over the functions that the driver had to perform using the clutch pedal on vehicles with a conventional clutch:
Ford Fusion Manual Transmission Problems (Durashift)
Ford Fusion"adaptation" robot after replacing the IUS brushes on their own. Without special equipment.
Malfunction robot ford
I found old videos shot on gopro. I showed what they are malfunctions robotic gearbox on ...
Dosed clutch engagement for pulling away
Clutch disengagement and engagement for gear shift while driving
Disengaging the clutch to stop in gear
Engaging the clutch with a gear engaged when the vehicle is parked with the engine off
gearshift actuator
1 - Electric motor gear shift
2 — the Electric motor of a choice of transfers
The gear selection motor is used to select the appropriate gear in the gearbox.
The gearshift motor is used to select the appropriate gear.
The electronics monitors the position of the motors using two Hall sensors, which prevents incorrect gear shifting.
Electronic shift lever
Electronic lever gear shift has no mechanical connection with the gearbox.
Clutch
The clutch is a mechanism for transmitting rotation, which can be smoothly turned on and off (squeezed out), providing jerk-free starting of the car from a place and silent gear shifting.
The self-adjusting clutch has the following advantages over conventional clutches:
Self adjusting clutch
The automated manual transmission uses a self-adjusting clutch. malfunctions The force required to disengage such a clutch is relatively small and remains virtually unchanged throughout the life of the clutch.
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For optimal operation of the Ford Robot box, it is necessary to replace the brake fluid in it every 30-40 thousand km and carefully monitor its condition. One of the problems in the operation of the robot may be related to the airing of the hydraulic system. The way out in this situation will be the adaptation of the gearbox, which is performed in specialized technical centers.
Also, carrying out this procedure will be appropriate when typical Ford robot box malfunction errors appear: errors p0919, errors P0810 (clutch position sensor error) and errors p0949 (the previous attempt was not completed to the end).
What is robot box adaptation?
Ford robot adaptation, often referred to as "driving moment learning", is a complex, multi-step process. Its essence lies in the fact that the settings of the car's electronics, which are responsible for the operation of the gearshift system, are reset. So, she learns the engine torque in a new way, learns to shift gears, move off without jerking and squeeze the clutch.
Stages of adaptation of the robot
In our technical center, the procedure for adapting the robot box is carried out in three stages, a special scanner is used as equipment:
- At the first stage, the TCM module is tuned, the brake fluid is replaced and the clutch is hydraulically bled when air is removed from the system.
- At the second stage, with the help of a scanner, the robot-shifter learns again to switch from first gear to second, from second to third, and so on.
- The final stage, which is carried out on a running car, includes the establishment (again with the help of a scanner) of the joint operation of the clutch (TCM module) and actuator motors (nodes responsible for direct gear shifting).
If all the work on adapting the robot was carried out correctly, the car will start off smoothly, the clutch will also be smoothly applied and the gears will be engaged.
Employees of our technical center will adapt the Ford robot, as well as repair robotic gearboxes, in accordance with all the rules, using the latest specialized equipment for this. We guarantee that you will be satisfied with the result!
The cost of adapting robotic gearboxes - from 2000 rubles
Please contact our service center at the address: Moscow, Ostapovsky proezd, 3, building 2 (metro station Volgogoradsky Prospekt) or call us by phone +7 495 724 94 92,+7 916 944 57 62 .
General diagnostics of Ford cars (Ford).
Question: Ford Fusion robot, adaptation
Greetings! Ford Fusion 1.4 manual transmission. After replacing the brushes in the TCM (clutch) unit, the robot began to switch with strong jerks. It is clear that clutch adaptation is needed. such a procedure is performed either by IDS or Scandoc. I would like to know for sure. Can Scandoc cope? Maybe there are more options?
Answer: Fusion came to me with a robot.
There doesn't seem to be any complaints about it. But I don't really like how the machine rides, switches. Although this may be the norm for them
Does it make sense to adapt? And will Lunch be up to the task?
More precisely, I’ll ask, will I make things worse as a result of some wrong actions?
Question: Ford Fusion 1.4 diesel 2002
Ford Fusion 1.4 diesel 2002 won't start error P0606 U2510
Answer:
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The article provides an overview of the device, the basic principles of the robotic box (durashift-ESM) installed on the Ford Fiesta and Fusion from 2002 to 2011, and also analyzes the main malfunctions that occur during the operation of this manual transmission.
For the first time, a robotic box of this type was introduced by Ford not at the Fiesta and Fusion, but at the Ford Transit of the model year, starting in 2000. However, in 2002, a manual transmission of this type was also installed at Fiesta and Fusion, since these are cars on the same base. The advantages of this system are obvious: it is much cheaper than a full-fledged automatic transmission, since at the center of this system is a slightly modified, well-proven mechanical B5 / IB5 gearbox, which was combined with an automatic transmission system. And besides, it is more maintainable, since, often, individual links of the system, and not the entire automatic transmission, are subject to repair. We also add that the robot box was installed only on models equipped with a 1.4 engine, both gasoline and diesel. On versions with a 1.6 petrol engine, there was already a full-fledged four-speed automatic transmission, which was designated as AW80.
Let us now consider the structure of the system in more detail. The figure below shows its main components:
1. Hydraulic Transmission Control Module (TCM)
2. Diagnostic connector (DLC)
3. Engine control unit (PCM)
4. ABS module
5. Instrument panel
6. Comfort unit (GEM)
7. Electronic gear selector
8. Clutch gap sensor
9. Gap sensor in selector drive
10. Gap sensor in the gearshift drive
11. Stoplight switch
12. Limit switch driver's door
13. Power relay
14. Ignition switch
15. Battery
16. Parking brake limit switch
17. Clutch drive
18. Selector servomotor
19. Gearshift servomotor.
Let us now briefly analyze the functions of the main elements of the system.
1. The TCM is the main control element of the robotic box. It combines in one unit both the digital control module itself and the hydraulic actuator that controls gear shifting, disengaging and engaging the clutch, depending on the current control strategy. This module, often referred to as the clutch actuator, (its engineering number 2S6R 7M168-SC is one of the options) sits on the left front side member and is integrated into the system both hydraulically and electrically. During operation, the TCM receives signals from various sensors and control devices about the engine operating mode, engine load, road speed, gear engaged, etc. and converts them into control signals for actuators. A DC electric motor is installed inside the hydraulic box control module, which rotates the worm gear. This gear has a self-locking function so that the clutch master cylinder piston can naturally stay in any position without force being applied to lock it in that position. The worm gear is connected to the piston rod by means of a special bolt.
The following TCM control functions can be distinguished:
a. Engine torque reduction;
b. Clutch disengagement;
c. Selecting the required gear;
d. Synchronization;
e. Engaging the selected gear;
f. Clutch engagement;
g. Increase engine torque.
This module should control gear shifting in such a way as to help increase the life of the transmission in the long run.
2. The engine control unit is an important element of the robotic box control system. It receives signals from sensors and actuators about load, engine speed, ignition timing, vehicle speed, etc. and transmits this data to the TCM to work out one or another gear control strategy.
3. The ABS module is also involved in the development of control strategies. The ABS module sends to the TCM the speed data of each wheel it receives from the ABS sensors, based on which it infers the vehicle's driving behavior.
4. The electronic gear selector does not have a direct mechanical connection with the gearbox, it controls the gear change through the TCM module, with which it is connected via the CAN bus. A change in the position of the selector is monitored by Hall sensors, converted into a digital signal and transmitted to the TCM. These sensors and microcircuits are located on the printed circuit board under the selector knob cover.
5. The clutch gap sensor is mounted in the TCM and is a plunger sensor with a solenoid. The rotation of the worm gear is translated by the rotation of the bolt into a linear movement of the ferrite core, which in turn changes the field in the coil and is further transmitted as a signal change to the TCM control unit. Using this control signal, the TCM determines the exact location of the clutch and thus implements clutch engagement or disengagement, torque change, or a creep-function.
6. The gap sensors in the selector drive and in the gear change drive are integrated into the actuating servomotors, which are located directly on the robot box. Each of these motors is equipped with 10 pairs of magnets, above each of which there are two Hall sensors with circuitry elements integrated into them, using signals from the Hall sensors to determine the rotation speed, angle of rotation and direction of rotation of each servomotor. This information is used by the TCM to precisely control gear selection and shifting.
7. The brake light limit switch transmits information to the transmission control valve about the driver pressing the brake pedal and is used by him for the following purposes:
a. unlocking the starter when starting the engine
b. downshifting when going downhill
c. switching forward or reverse gears when starting off
d. disabling the function of partial engagement of the clutch (creep-function)
e. when adapting to determine the position of the clutch engagement point.
8. Select and shift servos are driven by the TCM valve body. To do this, they are mechanically connected to the gear selection rod in the gearbox using rods and levers. Both motors use a worm gear to increase the control force required to act on the gear selector rod. The gear shift servo mechanism is designed with a special damping device to smooth and soften the shocks and shocks that occur when shifting gears, as well as to reduce gear shifting time.
Shift Control Strategies
1. Parking - when the engine is turned off, the clutch is engaged. If, at the same time, the selector is not in the neutral position (N), a gear is engaged to prevent the vehicle from rolling.
2. Engine Start Interlock - The engine will only start when the PCM has received permission from the transmission control module to start.
3. Clutch point adaptation (transmission adaptation) - When installing a new or different TCM, as well as after repairing the latter, the clutch point must be redefined. The contact point or clutch point is the mutual position of the disc and the clutch basket at which a torque from the engine is transmitted to the transmission, equal to approximately 4 Nm. This procedure is performed only with the help of specialized Ford equipment and can also be performed by Ochakovo-Ford specialists. The contact point information is required by the TCM to engage and disengage the clutch in the smoothest manner possible.
4. Partial engagement of the clutch (creep-function) - this function is also used on full-fledged automatic transmissions and consists in the fact that when the gears "D" or "R" are engaged and the gas or brake pedals are released, the car "creeps" at a low speed , on the semi-disengaged clutch.
5. Clutch overheating protection - for this, the TCM is able to detect the temperature of the clutch, issue an error message and change the control strategy if the clutch temperature exceeds the allowable threshold.
6. Starting off - usually the driver starts off by pressing the gas pedal. In principle, it is possible to start off both in 1st, and in 2nd and 3rd gears. In automatic mode, the box moves only from first gear. To start off in other gears, the driver must turn them on forcibly.
7. Driving down steep hills - The TCM determines that the vehicle is rolling down a steep hill by comparing vehicle acceleration information with engine load information. In the event that the TCM senses that the vehicle is going down a steep grade, it will prevent upshifting below a certain engine RPM to take advantage of the engine braking effect, in addition to this, the TCM will downshift when the brake pedal is depressed, provided that this allows the engine speed.
8. Determination of driving resistance - the hydraulic module, as in the previous case, sees the resistance by comparing information about the acceleration of the car with information about the load on the engine. The TCM selects the shift timing based on the amount of driving resistance.
There are other transfer control strategies, but we have listed the main ones above.
Now let's move on to the main malfunctions that occur during the operation of the durashift-ESM robotic box.
Perhaps the main problem is a malfunction that occurs in the transmission control unit itself - TCM. Over time, the collector and shaft brushes in the hydraulic module wear out and it starts to fail - the controller cannot accurately determine the contact point of the clutch. At the same time, it becomes impossible to adapt the box, since the module does not understand where the clutch point is. This is treated either by replacing the valve body with a serviceable one, or by repairing the latter. Such a procedure can be carried out by Ochakovo-Ford specialists. The procedure includes the removal of the transmission control unit, its repair, if it is repairable, installation, as well as the subsequent adaptation of the box. At the same time, the cost of repairs at the time of writing is from 16 thousand to 20 thousand rubles. This transmission module is perhaps one of the most expensive elements of the transmission control system. And it costs over 1000 euros new. You can, again, find a used valve body at a showdown, it costs 20-25 thousand rubles, but, of course, no one knows how long it takes and whether it is a worker. It often happens that people buy a used spare part, after installation it turns out that it is faulty, but they can no longer return it. Therefore, the TCM repair option is the most reliable - of course, if it is repairable.
Another common malfunction is the failure of one of the servos that are on the box. In this case, it is better to change them for a used one or a new one, since it is much more difficult to repair them than a hydronic module. Again, after replacing the motor, you will have to undergo adaptation (retraining) of the gearbox. This procedure costs about three thousand rubles in Ochakovo-Ford.
Often in the event of a malfunction with the robotic box at Fiestas and Fusions, it is necessary to diagnose the ABS system, because malfunctions that occur in it can directly affect the operation of the transmission control system. Again, before carrying out the adaptation procedure, it is necessary to ensure the elimination of malfunctions associated with self-diagnosis codes - otherwise the diagnostic device will simply not be allowed into the adaptation procedure.
And finally, one of the most common faults is the corrosion of electrical wiring. Often, before rushing headlong into the pool of repairs or searching for a used transmission control module, you must first check the condition of the wiring for integrity and absence of corrosion, check the integrity of the fuses, etc. And best of all, entrust this procedure to an experienced Ochakovo-Ford electrician-diagnostician.
When designing a robotic transmission, the engineers of the American company Ford decided to completely get rid of complex hydraulic mechanisms. The first Durashift was built on the basis of conventional iB5 mechanics from Focus in 2000. It was supplemented with an electronic unit with an electro-hydraulic clutch, actuators. This design has a beneficial effect on the switching speed. It takes not 600 milliseconds, as for mechanics, and not 800 milliseconds, as for automatic transmission, but only 200 milliseconds.
The weight of the Durashift EST is the same as that of a classic machine. But there are no typical losses in the torque converter, so the consumption of cars with a robotic transmission is significantly less than in the case of automatic transmission. But the designers could not avoid the typical drawback of the "robot" - a power gap. This negatively affects the smoothness of switching.
As actuators, two electric motors are used, which are arranged on a single plate. To ensure correct switching, the position of the motors is monitored by Hall sensors. The shift lever itself is not mechanically connected to the box. Its movement is read by sensors, the data from which is taken, and then transferred to the electronics control unit. CAN information bus is built into the design. Instead of the traditional clutch mechanics, the original connection of the disc and the release bearing was used.
The Durashift clutch is self-adjusting. This provides two undeniable advantages:
- It does not require high force to turn off, which makes the operation of the car more comfortable.
- Increased resource due to automatic adjustment.
Note: Durashift EST is installed on Fiesta, Fusion, Mazda 2 models with a 1.4 liter engine. "Robot" is protected from emergencies. For example, you can only start the engine in N mode, the brake pedal must be depressed. The ECU prevents manual shifting when the engine speed and driving speed do not match the gear being engaged.
Adaptation of Durashift robotic boxes
In case of failures in the electronics, after maintenance, replacement of the clutch assembly, it is necessary to re-train the robot - to adapt the transmission. This requires the correct selection of torque, correct switching and clutch release, smooth start of movement. To carry out adaptation, dealer scanners are used. The procedure consists of three steps:
- Bleeding the hydraulic system with TCM setting. Old brake fluid is changed or simply topped up.
- Setting up servomotors for setting up switching.
- Organization of the relationship between the clutch, servomotors and the TCM module.
Please note that when operating in Russian conditions, semi-synthetic oil 75W-90 is used for manual transmission. But no maintenance will protect against breakdowns in case of violation of the normal operating mode. In the event of a breakdown of a car with Durashift EST, it is better not to tow it to the service, but to use the services of a tow truck. When placing a tow truck on a flyover, turn on neutral gear.
Common Durashift EST Problems
1) Gears do not shift due to wiring damage
- The harness with wires is not protected from the negative effects of the environment. The commutation suffers from moisture and dirt, especially in the area between the electric motors and the switch box controller, which is as close to the ground as possible.
2) Clutch failure
- The clutch resource ranges from 120–180 thousand km. Its development is connected not only with the quality of service, but also with the driving style. If during long stops the gearshift knob is moved to the neutral position, this contributes to less overheating, long service life of the performer and the clutch itself.
3) Sensor errors
- Most errors are related to the incorrect position of the clutch or shift mechanism.
4) The motors in the servos do not function correctly
- Servo drives use complex pulses to control motors. The motors themselves are equipped with brush assemblies with Hall sensors. If they are contaminated, the operation of the mechanism is disrupted.
RVS-Master for CIP repair Durashift EST
Starting at sub-zero temperatures inevitably leads to accelerated wear. The same thing happens at the time of overheating, when the car is idle in a traffic jam. Most of the cars with Durashift EST: Fiesta, Fusion, Mazda 2 are operated in megacities. Therefore, the box is under increased load. They are used for protection, which also restores gears, shafts, bearings in the transmission.
After processing, a strong layer of cermet is formed. The physical characteristics of the working surfaces change, friction is reduced. Therefore, over time, the rumble, extraneous noise and vibration disappear. The newly formed layer is resistant to corrosion, restores the nominal dimensions of parts, and is not alien to ferrous alloys in its structure. Unlike classic additives, conditioners, flushes, RVS-Master does not affect the properties of the oil. Semi-synthetics in manual transmission retains basic fluidity and heat dissipation efficiency, does not form foam, sediment.
Normalization of the operation of the manual transmission contributes to a drop in fuel consumption. Timely maintenance and preventive treatment with a friction geomodifier allow you to enjoy all the benefits of Durashift EST on Fiesta, Fusion, Mazda 2. The advantages of such a manual transmission include:
- The ability to fully control the ride due to engine braking and active manual shifting.
- "Short" first gear, which is suitable for a quick start from traffic lights.
- Automatic adaptation to current road conditions - hills, winding roads. This is realized thanks to the uphill and downhill recognition mode, which guarantees gear changes in the optimal sequence.
- Suitability for dynamic driving.