摘要:
A process for controlling an internal combustion engine, whereby the internal combustion engine is equipped with a device to change a valve timing. To permit a change in the valve timing only when it is necessary for the operation of the internal combustion engine, a transmission, connected at the end of the internal combustion engine, is monitored as to whether a shift operation is taking place in the transmission. If such a shift operation is recognized, a change in the valve timing is suppressed.
摘要:
A method/system for controlling shifting in an automated mechanical transmission system (10) utilized on a vehicle having an engine brake (ECB), preferably controlled by an ECU (28). Shifts to be initiated while the engine brake is active and engine brake assisted upshifts are evaluated with regard to the engine built in engine brake deactivation response delay (TECBDEACTIVATE).
摘要:
The invention is directed to a method and an arrangement for detecting a changing quantity for a motor vehicle. The changing quantity is the position of an operator-controlled element. At least one stop value is determined for the operator-controlled element when released. Outside of the operation of the motor vehicle, this stop value is dependent upon the operation of a test apparatus connected to the control unit of the motor and/or when a defined state of the control unit and/or when there is a defined sequence of specific actuations of operator-controlled elements.
摘要:
A shift control system for a continuously variable transmission, in which a road load on a vehicle is detected, the lower limit speed is set according to the detected road load, in which a target input speed, as set according to the running state of a vehicle, is restricted with the set lower limit speed, and in which the gear ratio of the continuously variable transmission is controlled so that the actual input speed may be equal to the target input speed restricted. The target input speed is restricted after the actual input speed is more than the lower limit value, when the road load is light, and said target input speed is restricted irrespective of the actual input speed when the road load is heavy.
摘要:
A method and apparatus for providing first and second automatic shift modes for an automatic transmission. Shifting of the automatic transmission is controlled by a transmission controller. The driver selects a control mode by manipulating an input device. The controller controls the operation of the automatic transmission using a first set of operating characteristics and a second set of operating characteristics in response to receiving the first mode signal and the second mode signals, wherein the first and second sets of operating characteristics include engine management characteristics.
摘要:
A vehicle, such as, e.g., a diesel-powered truck, has a transmission control system that, e.g., improves fuel efficiency and/or consumption. In some embodiments, the vehicle includes: an engine that powers said vehicle; a transmission to change ratios between engine speed and wheel speed; and at least one control unit configured to shift the transmission in a plurality of lower gears substantially against the governed speed of the engine and to shift the transmission in a plurality of higher gears substantially against the peak torque speed of the engine.
摘要:
A method for driving a drive assembly in a drive system having an automatic transmission and an automatic clutch optionally coupling the drive assembly to the automatic transmission in order to transmit torque includes the following steps. Sensing whether a procedure, in particular a gearshift operation, is to be conducted. After the procedure has been sensed, predefining, for at least one time segment of the procedure which is to be carried out a prediction profile for an operational variable that characterizes the operating state of the drive assembly. And, driving the drive assembly based on the predefined prediction profile of the operational variable to minimize a deviation between the operational variable and the prediction profile.
摘要:
At the time of the change-speed, by correcting the torque reducing portion of an output shaft during the change-speed, the revolution number of an input shaft is controlled on the basis of the corrected torque reduction correcting value. Also, the torque of said input shaft is adjusted at the end of the change-speed on the basis of said torque correcting value.
摘要:
A driving control device and methods including controllers for independently controlling a steering angle, and braking and driving force of each wheel. The device includes detectors that detect driver input including a steering operation amount, a driving force operation amount, and a braking force operation amount. Moreover, the device includes calculators that calculate a vehicle target longitudinal and lateral force, and a vehicle target yaw moment based on the inputs by the driver, a target generating force of each wheel based on the detected amounts, and a target steering angle and target braking and driving torque of each wheel based on the target generating force of each wheel. Finally, a controller controls the device so that a steering angle and the braking and driving torque of each wheel are determined to be the target steering angle and the target braking and driving torque.
摘要:
An improved automatic shift transmission control method establishes an initial methodology for sharing adaptive corrections among shift parameters stored for related types of shifts, and subsequently modifies the initial methodology as the adapted parameters converge on respective optimum values. Individual shift types are initially categorized to indicate the degree of cross-adaptive correction, and when shift parameter convergence occurs, the shift types are re-categorized, thereby modifying the initial cross-adaptive methodology to restrict further cross-adaptive correction. A given shift type is automatically reset to an initial or prior categorization to permit less restricted cross-adaptive correction if reset conditions are met. In this way, the methodology for sharing adaptive corrections automatically evolves to suit individual transmission operating characteristics and conditions, and effectively prevents degradation of a shift due to sharing of adaptive corrections developed for a related shift.