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:
An automatic transmission has a first axis (input axis) 102 for inputting the power, a second axis (output axis or couner axis) 103 for outputting the driving force source, at least one or more first gear group which consists of drive gears 111, 112 fixed on the first axis, and a driven gear 122 provided so as to engage or run idle with respect to the second axis with being engaged with the drive gear, and at least one or more second gear group which consists of driven gears 123, 124, 125 fixed on the second axis, and a drive gear 114, 115 provided so as to engage or run idle with respect to the first axis with being engaged with the driven gear. The automatic transmission further comprises a torque transferring mechanism 140 for transfering the torque between said driven gear which can run idle with respect to the second axis and the driven gear fixed to the second axis.
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).
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:
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:
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:
A large gearshift shock that occurs if a renewed gearshift operation is forcibly carried out in order to meet a new gearshift request made through a driver's operating an accelerator pedal or a signal from an operation lever during a current gearshift operation. Gearshift response lag occurs due to an attempt to avoid the large gearshift shock. To solve these problems, a control system for a gear type transmission is mounted. The control system is provided with a renewed gearshift disabling period, during which any renewed gearshift request to a third predetermined gearshift position made during a gearshift operation from a first predetermined gearshift position to a second predetermined gearshift position is disabled.
摘要:
A large gearshift shock that occurs if a renewed gearshift operation is forcibly carried out in order to meet a new gearshift request made through a driver's operating an accelerator pedal or a signal from an operation lever during a current gearshift operation. Gearshift response lag occurs due to an attempt to avoid the large gearshift shock. To solve these problems, a control system for a gear type transmission is mounted. The control system is provided with a renewed gearshift disabling period, during which any renewed gearshift request to a third predetermined gearshift position made during a gearshift operation from a first predetermined gearshift position to a second predetermined gearshift position is disabled.
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:
In a transmission with a first clutch including a first upstream rotary member to be driven by an input shaft, and a first downstream rotary member to be driven by the first upstream rotary member to drive an output shaft so that the first upstream and downstream rotary members are adapted to be selectively engaged with each other and disengaged from each other, an output shaft driving device includes a second upstream rotary member to be driven by the input shaft, and a second downstream rotary member to be driven by the second upstream rotary member to drive the output shaft.