摘要:
A control system for a motor vehicle is provide which is capable of reducing a load on a friction engagement device and preventing the friction engagement device from being damaged. A transmission 50 includes a plurality of gears and a plurality of dog clutches for transmitting torque from an input shaft 41 to an output shaft 50 and a friction engagement device 10. A torque transmission path from the input shaft 41 to the output shaft 50 is formed through engagement between the gear and the dog clutch. When the engagement between the gear and the dog clutch is changed from a first engagement to a second engagement, the friction engagement device 10 is used to transmit torque of an engine 6 from the input shaft 41 to the output shaft 50. A power train unit 100 includes state determiner 310 and engine torque control means 320. The state determiner 310 detects or estimates a thermal state of the friction engagement device 10. The engine torque controller 320 controls the torque of the engine 6 according to a parameter representing the thermal state detected or estimated by the state determiner 310.
摘要:
The deterioration of comfort is prevented by suppressing the shifting of a timing for releasing a claw clutch due to a change in the characteristic of a friction clutch or the like at the time of torque transmission switching from the claw clutch to the friction clutch during speed changing. A start timing for releasing the claw clutch is learned by determining a state of the released claw clutch. Even when a characteristic change occurs because of a change with time, such as the response delay of an assist clutch or the like, each optimal releasing control timing is learned.
摘要:
The thrust load of the friction transfer mechanism is adjusted with an electric actuator, the thrust load of said friction transfer mechanism is be increased with a fixed inclination, at the first stage from the time control is started to the time the predetermined time elapses, the inclination of the thrust load of said friction transfer mechanism is set to the inclination smaller than that of the thrust load of said friction transfer mechanism at said first stage, at the second stage where said friction transfer mechanism moves further to the predetermined position, and the thrust load of said friction transfer mechanism may be increased with the inclination larger than that of the thrust load of said friction transfer mechanism at said second stage, at the third stage where the predetermined time elapses further.
摘要:
A control system for a motor vehicle is provide which is capable of reducing a load on a friction engagement device and preventing the friction engagement device from being damaged. A transmission 50 includes a plurality of gears and a plurality of dog clutches for transmitting torque from an input shaft 41 to an output shaft 50 and a friction engagement device 10. A torque transmission path from the input shaft 41 to the output shaft 50 is formed through engagement between the gear and the dog clutch. When the engagement between the gear and the dog clutch is changed from a first engagement to a second engagement, the friction engagement device 10 is used to transmit torque of an engine 6 from the input shaft 41 to the output shaft 50. A power train unit 100 includes state determiner 310 and engine torque control means 320. The state determiner 310 detects or estimates a thermal state of the friction engagement device 10. The engine torque controller 320 controls the torque of the engine 6 according to a parameter representing the thermal state detected or estimated by the state determiner 310.
摘要:
The thrust load of the friction transfer mechanism is adjusted with an electric actuator, the thrust load of said friction transfer mechanism is be increased with a fixed inclination, at the first stage from the time control is started to the time the predetermined time elapses, the inclination of the thrust load of said friction transfer mechanism is set to the inclination smaller than that of the thrust load of said friction transfer mechanism at said first stage, at the second stage where said friction transfer mechanism moves further to the predetermined position, and the thrust load of said friction transfer mechanism may be increased with the inclination larger than that of the thrust load of said friction transfer mechanism at said second stage, at the third stage where the predetermined time elapses further.
摘要:
Friction clutches 203, 204 and engaging clutches 19, 20, 21 are arranged between an input shaft and an output shaft of a gear type transmission having a plurality of gear trains. A power train unit 100 controls an output shaft torque and an input rotation speed of the transmission during changing speed by estimating or detecting input a torque to the transmission, and detecting an output rotation speed of the transmission, and setting a target shift torque during shifting gear, and setting a command value to the friction clutches 203 and 204 from the target shift torque and the input torque.
摘要:
Power train control unit 100 controls friction clutch 203 when shifting from one cogwheel row to the other cogwheel row, sets the target synchronous rotation speed based on the output rotation speed of a transmission and parameters indicative of the state of engine 1 or the transmission, and sets the command value to the friction clutch so that the input rotation speed can be synchronized with the target synchronous rotation speed. Control unit 100 sets the target shifting required time based on parameters indicative of the state of engine 1 or the transmission, and corrects the command value to the friction clutch so that the required shift time can approach the above target shift required time.
摘要:
Power train control unit 100 controls friction clutch 203 when shifting from one cogwheel row to the other cogwheel row, sets the target synchronous rotation speed based on the output rotation speed of a transmission and parameters indicative of the state of engine 1 or the transmission, and sets the command value to the friction clutch so that the input rotation speed can be synchronized with the target synchronous rotation speed. Control unit 100 sets the target shifting required time based on parameters indicative of the state of engine 1 or the transmission, and corrects the command value to the friction clutch so that the required shift time can approach the above target shift required time.
摘要:
A control device and a control method for a vehicle with an auto clutch, and a vehicle with an auto clutch which is able to control the unexpected roll back of the vehicle caused by the security function when the abnormality of a clutch is detected. When temperature abnormality judgment means 102 detects the abnormality of temperature of clutch 3, clutch release command generation means 104 releases the clutch. When clutch release state judgment means 105 judges the release state of the clutch, braking force command generation means 106 outputs a command to generate the restraint force to brake actuator 6 in order to control the roll back of the vehicle. Brake actuator 6 generates the braking force to the vehicle.
摘要:
A control device for giving an existing gear type transmission a parking lock function to lock a vehicle; a control method thereof; and an automobile having an improved transmission. The gear type transmission comprises a gear type speed change mechanism (5) provided with a mesh type clutch (3), and a second friction clutch (4) installed between the shafts of the speed change mechanism to enable torque transfer during shifting. A parking demand detecting means (9) detects the driver's parking demand. And, when it detects the driver's parking demand, a control device (10) sends an instruction signal to an actuator to instruct the latter to engage both the mesh type clutch (3) and the second friction clutch (4).