摘要:
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine is rotated to increase pressure within a fuel rail. The engine is rotated without combusting air and fuel within the engine.
摘要:
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine is accelerated to a speed of a driveline integrated starter/generator before the engine is coupled to the driveline integrated starter/generator.
摘要:
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline gear lash gear tooth to gear tooth impact may be reduced via adjusting operation of an electric machine. For example, gear tooth to gear tooth impact may be reduced by operating the electric machine in a speed control mode to manage torque during driveline torque transition from a negative torque to a positive torque.
摘要:
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, external data are a basis for operating a driveline disconnect clutch. For example, a vehicle destination may be a basis for opening a driveline disconnect clutch and beginning to discharging an energy storage device so that fewer hydrocarbons may be consumed by the vehicle.
摘要:
A method and a system for improving operation of a hybrid vehicle are presented. In one example, operation of a transmission torque converter lockup clutch is adjusted to improve engine starting control. The approach may improve engine starting and vehicle drivability.
摘要:
A method and a system for improving operation of a hybrid vehicle are presented. In one example, a disconnect clutch is operated in response to an engine stop request to adjust an engine stopping position during an engine shutdown. The approach may reduce engine starting time after the engine stop.
摘要:
Systems and methods for improving operation of an engine are presented. In one example, a position of a throttle is adjusted along with other actuators to improve engine starting.
摘要:
Systems and methods for learning torque estimate errors and updating torque estimation models are presented. In one example, torque errors are learned during an engine shut-down, after a disconnect clutch coupled between an engine and an electric machine has been released. An updated torque estimation model is then used to control torque during subsequent engine operation to improve drive feel and vehicle performance.
摘要:
A route learning system for a vehicle and a method of using the system is described. The method includes: in response to determining that a current location matches a historical location, retrieving from memory false alert geotag that includes historical path data; and based on determining that a currently-predicted path does not match the historical path, replacing the currently-predicted path with the historical path to mitigate a false warning to a driver of a host vehicle.
摘要:
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operating modes may be manually selected to improve hybrid driveline operation during off road conditions. The approaches may improve vehicle drivability and reduce driveline degradation.