Vehicle, torque output method and device

Abstract

The invention relates to a vehicle and a torque output method and device. The method comprises the following steps of detecting the actual mass of a whole vehicle, a current vehicle speed and a current accelerator pedal opening degree; according to a relationship among the actual mass of the whole vehicle, the no-load mass of the whole vehicle and the full-load mass of the whole vehicle, an outputtorque calibration value of an engine / driving motor in the no-load state of the whole vehicle at the current vehicle speed and the current accelerator pedal opening degree, and the output torque calibration value of the engine / driving motor in the full-load state of the whole vehicle at the current vehicle speed and the current accelerator pedal opening degree, obtaining an engine / driving motor output torque value corresponding to the actual mass of the whole vehicle under the current vehicle speed and the current accelerator pedal opening degree; and then, controlling the engine / driving motor. According to the method, power output of the vehicle at different speeds and different accelerator pedal opening degrees is adjusted according to the actual mass of the whole vehicle, the dynamic property of the vehicle is kept consistent in the driving process, and power self-adaptive adjustment within the actual mass change range of the whole vehicle is met.

Description

technical field [0001] The invention relates to a vehicle, a torque output method and a device, and belongs to the field of vehicle power assembly control. Background technique [0002] Commercial vehicles, such as city buses, logistics vehicles, etc., during operation, the quality of the vehicle often changes in a wide range due to loading and unloading passengers or loading and unloading goods. At this time, the driver needs to constantly adjust the driving style to take into account the vehicle's Comfort, economy and driving safety. [0003] At present, commercial vehicles generally have a variety of driving modes for the driver to choose from. Each driving mode corresponds to an engine or drive motor output power setting, and the driver can manually adjust it according to actual needs. For example, some medium- and heavy-duty trucks are equipped with multi-state switch buttons to set three maximum power output modes for no-load, half-load and full-load, which can be man...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a vehicle torque output method to solve the problem in the prior art that different actual vehicle masses may correspond to one engine power output, which cannot satisfy the power adaptive adjustment within the range of actual vehicle mass variation. At the same time, a vehicle torque output device is also provided to solve the problem that the existing technology cannot satisfy the power self-efficacy within the range of the actual mass change of the entire vehicle due to the fact that different actual vehicle masses may correspond to one engine power output. The problem of adapting to the needs of adjustment; at the same time, a vehicle is also provided to solve the problem that the existing technology cannot satisfy the power self-adaptation within the range of actual mass variation of the entire vehicle due to the fact that different actual vehicle masses may correspond to one engine power output The question of the need for regulation

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