摘要:
The invention relates to a method for carrying out a starting operation of a motor vehicle having a gear train that includes a dual clutch transmission with a first clutch that carries the odd-numbered gears, and a second clutch that carries the even-numbered gears, wherein the second clutch of the dual clutch transmission is used, at least in part, for preloading the gear train.
摘要:
An electronic traction optimization system includes a control unit adapted to produce a corner speed estimate signal for each wheel of a machine, produce an ideal target speed signal for each wheel having a value at least partially responsive to the corner speed estimate signals, produces a practical target speed signal for each wheel, generates an actual target speed signal having a value responsive to a comparison of the ideal target speed signal and the practical target speed signal for each wheel. The control unit compares each actual target speed signal to an associated wheel speed signal to obtain a wheel speed error signal for each wheel and converts each wheel speed error signal to a clutch control signal, wherein each differential clutch actuator is responsive to an associated clutch control signal.
摘要:
A method for operating a forward-guiding driver assist system, in particular an ACC system, in a motor vehicle having a clutch pedal as a driver-operated actuator for manually operating a clutch and an additional clutch actuator includes the steps of performing with the driver assist system at least one driving intervention for controlling the speed of the motor vehicle, determining a desired clutch slip, when controlling the speed, and controlling the additional clutch actuator for automatically disengaging and engaging the clutch commensurate with the determined clutch slip.
摘要:
The clutch control apparatus includes a first reference value setting portion for setting a first engagement amount reference value of the first and the second clutches and to obtain a target transmitting torque by calculating a target inertia torque by multiplying a target rotation speed change rate of the engine at a speed change operation by an inertia of the engine and subtracting the target inertia torque from the current output torque of the engine to be the target transmitting torque of the first and the second clutches and a second reference value setting portion for setting a second engagement amount reference value by correcting the first engagement amount reference value based on the vehicle speed and the turning radius.
摘要:
A method for controlling operation of a transfer case in a motor vehicle driveline that includes by an engine controlled by a throttle having a variable position, and a transmission driveably connected to the engine for producing multiple ratios of the speed of a transmission input relative to the speed of a transmission output. The transfer case transmitting rotating power in response to an electric signal applied to a clutch. The method includes determining that the engine throttle position is less than a first reference throttle position during a period of predetermined length; determining that a speed of the vehicle speed is in a predetermined range; determining that the transmission is operating in a speed ratio greater than a reference speed ratio; determining that the engine throttle position is greater than a first reference throttle position; and increasing the torque capacity of the clutch for a predetermined period.
摘要:
A clutch control device for an industrial vehicle includes: a braking force detection device that detects braking force of the industrial vehicle; a speed stage detection device that detects a set speed stage of a transmission; a clutch control device that controls engage/release of a forward clutch so that the forward clutch is released when a clutch cut off condition is judged to be satisfied based upon braking force of the industrial vehicle detected by the braking force detection device; and a switching device that automatically switches the clutch cut off condition in the clutch control device based upon a set speed stage of the transmission detected by the speed stage detection device.
摘要:
A method for operating a forward-guiding driver assist system, in particular an ACC system, in a motor vehicle having a clutch pedal as a driver-operated actuator for manually operating a clutch and an additional clutch actuator includes the steps of performing with the driver assist system at least one driving intervention for controlling the speed of the motor vehicle, determining a desired clutch slip, when controlling the speed, and controlling the additional clutch actuator for automatically disengaging and engaging the clutch commensurate with the determined clutch slip.
摘要:
A clutch control device for an industrial vehicle includes: a braking force detection device that detects braking force of the industrial vehicle; a speed stage detection device that detects a set speed stage of a transmission; a clutch control device that controls engage/release of a forward clutch so that the forward clutch is released when a clutch cut off condition is judged to be satisfied based upon braking force of the industrial vehicle detected by the braking force detection device; and a switching device that automatically switches the clutch cut off condition in the clutch control device based upon a set speed stage of the transmission detected by the speed stage detection device.
摘要:
A driving motor drives power-consuming devices and, via a clutch device, driving wheels as well. Upon actuation of a brake pedal, an electronic controller determines an input torque of the clutch device and disengages the clutch device when the brake pedal has reached a defined value that is dependent upon the input torque.
摘要:
The object of the present invention is to suppress the generation of abnormal noise from a transmission system that occurs when a vehicle is turning. A front wheel output shaft is directly linked with the transmission system, and a rear wheel output shaft is linked to the transmission system via a transfer clutch. When the front wheel output shaft rpm Nf and the rear wheel output shaft rpm Nr separate from each other beyond a specified value (α2) while turning a corner, and then the accelerator pedal is released and the engine rpm Ne and turbine rpm Nt approach each other beyond a specified value (β2), and then if vibration at a specified vibration frequency appears in the front wheel output shaft rpm Nf (γ2), the duty ratio Rd of the clutch pressure control valve 52 is decreased (δ2). Next, as the duty ratio Rd decreases, when it is determined that vibration in the front wheel output shaft rpm Nf has been eliminated (ε2), normal slip control is restored, and control is performed so that the duty ratio Rd is increased again (ζ2). By doing this, it is possible to suppress vibration of the front wheel output shaft, and thus suppress the generation of abnormal noise from the transmission system.