摘要:
A method for enhancing the performance of a work vehicle (10) including storing a reference transmission torque and a reference transmission speed for a transmission (24) of the work vehicle. At least one of the reference transmission torque or the reference transmission speed may be determined based at least in part on drivetrain life data associated with at least one drivetrain component of the work vehicle. In addition, the method may include determining a current transmission speed for the transmission, determining a transmission output torque limit for the transmission based on the current transmission speed, the reference transmission torque and the reference transmission speed and controlling an engine (22) of the work vehicle such that a transmission output torque of the transmission does not exceed the transmission output torque limit while the transmission is being operated at the current transmission speed.
摘要:
Die Erfindung betrifft ein Verfahren zur Steuerung eines Antriebsstranges eines Kraftfahrzeuges, mit einem, eine Kurbelwelle mit einem vorgegebenen Motormoment antreibenden Brennkraftmaschine, wobei die Kurbelwelle mit einer Getriebeeingangswelle eines Getriebes über eine Reibkupplung zum Antrieb des Antriebsstranges verbunden wird. Bei einem Verfahren, bei welchem ein Durchrutschen der Reibkupplung auch bei niedrigen Temperaturen zuverlässig verhindert wird, wird bei einer Änderung einer Temperatur der Reibkupplung das Motormoment der Brennkraftmaschine geändert.
摘要:
Methods and systems are disclosed for reducing engine flywheel power reduction of an engine while protecting a drivetrain. The method includes monitoring transmission gear selection; determining reduction in flywheel power to protect the drivetrain; and monitoring engine power consumption by other engine power loads. When other engine power loads consume less power than the reduction in flywheel power to protect the drivetrain, the method includes reducing flywheel power by the power difference. When other engine power loads consume the same or more power than the reduction in flywheel power to protect the drivetrain, the method includes not reducing the flywheel power. Engine power can be consumed by both on-vehicle and off-vehicle power loads. Engine power can be consumed by an electric generator and/or a plurality of inverters, and their power consumption can be monitored. Information and commands can be communicated over a controller area network (CAN) bus.
摘要:
A method is provided to control an engine braking operation of a vehicle provided with a dual clutch transmission. The dual clutch transmission is adapted to be set into different gear-combinations, each including an active gear selection through which torque can be transmitted, and a passive gear selection through which no torque can be transmitted. In a pre-set number of gear-combinations, the first input shaft and the main shaft have a synchronised rotation. When an engine braking operation is performed when the transmission is set in one of the pre-set number of gear-combinations modifying said engine braking operation such that a damaging load upon said spigot bearing is reduced.
摘要:
A method is provided to control an engine braking operation of a vehicle provided with a dual clutch transmission. The dual clutch transmission is adapted to be set into different gear-combinations, each including an active gear selection through which torque can be transmitted, and a passive gear selection through which no torque can be transmitted. In a pre-set number of gear-combinations, the first input shaft and the main shaft have a synchronised rotation. When an engine braking operation is performed when the transmission is set in one of the pre-set number of gear-combinations modifying said engine braking operation such that a damaging load upon said spigot bearing is reduced.
摘要:
A system for controlling (20) a power train of a motor vehicle, the power train (20) being capable of delivering an engine torque to a hydraulic torque converter (13). The control system comprises means (21) for determining a temperature gradient of the oil of the hydraulic torque converter (13), means (22) for estimating a curve of the force of resistance to forward travel of the motor vehicle depending on a practical mass of the motor vehicle based on said temperature gradient, and means (23) for controlling said engine torque depending on said estimation.
摘要:
When gear shift to second gear shift stage is completed and frictional engagement element is judged to be in slip state by slip state judging unit in a state in which input torque is input torque upper limit value, a value obtained by subtracting first predetermined amount from the input torque upper limit value is set as a decrease side input torque upper limit value. When next gear shift to the second gear shift stage is completed with the decrease side input torque upper limit value set and the frictional engagement element is not judged to be in slip state by the slip state judging unit in a state in which the input torque is the decrease side input torque upper limit value, a value obtained by adding second predetermined amount to the decrease side input torque upper limit value is set as a new input torque upper limit value.