The present disclosure provides "ramp hold assist". A vehicle includes a powertrain having a power device and a transmission. The transmission has an input shaft operably coupled to the power device and an output shaft operably coupled to a driven wheel. A vehicle controller is programmed to, in response to applying a brake pedal, a rotational speed of the output shaft being less than a threshold rotational speed, and a position of an accelerator pedal being less than a threshold position, automatically engage a friction brake regardless of a road grade, and continue to engage the friction brake despite subsequent release of the brake pedal, such that the brake pedal is released. Such that the friction brake is engaged to maintain the vehicle stationary independent of the road grade. The controller is also programmed to release the friction brake in response to the position of the accelerator pedal being greater than a second threshold position.
本公开提供了“坡道保持辅助”。一种车辆包括动力传动系统,所述动力传动系统具有动力装置和变速器。所述变速器具有可操作地联接到所述动力装置的输入轴和可操作地联接到从动轮的输出轴。车辆控制器被编程为响应于施加制动踏板、所述输出轴的转速小于阈值转速并且加速踏板的位置小于阈值位置,不管道路坡度如何都自动地接合摩擦制动器,并且尽管随后释放所述制动踏板,但仍继续接合所述摩擦制动器,使得所述摩擦制动器被接合以独立于所述道路坡度而保持所述车辆静止。所述控制器还被编程为响应于所述加速踏板的位置大于第二阈值位置而释放所述摩擦制动器。
RAMP HOLDING ASSISTANCE
坡道保持辅助
2022-06-14
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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