Accelerator pedal torque calculation method and device, and automobile

Abstract

The invention relates to an accelerator pedal torque calculation method and device and an automobile. The method comprises the steps of firstly, obtaining different accelerator pedal opening degrees, sequentially sorting the accelerator pedal opening degrees from small to large, and calculating expected accelerations at different automobile speeds when the accelerator pedal opening degrees are 0% in combination with sliding energy recovery torque and road resistance; based on the expected acceleration when the opening degree of the accelerator pedal is 0% and the acceleration change rate, the expected acceleration under the rest of the opening degrees of the accelerator pedal is calculated, and finally based on the expected acceleration under the different opening degrees of the accelerator pedal and the different vehicle speeds and the road resistance under the different vehicle speeds, the accelerator pedal torque under different accelerator pedal opening degrees and different vehicle speeds is calculated. According to the method, problems of poor driving feeling and poor drivability of the vehicle due to the fact that the vehicle driving irregularity and the torque change cannot follow up the acceleration intention expected by the driver due to the irregularity of the torque in the related technology can be solved.

Description

technical field [0001] The present application relates to the technical field of vehicle control, in particular to a calculation method, a calculation device and a vehicle for accelerator pedal torque. Background technique [0002] With the deepening of the energy crisis and the continuous improvement of the concept of environmental protection, new energy vehicles have developed rapidly. [0003] New energy vehicles include hybrid models and pure electric models. The power system of hybrid models includes an engine and a drive motor, while the power system of a pure electric model does not include an engine and only includes a drive motor. [0004] The inventors found that no matter it is a hybrid vehicle with two drive systems or a pure electric vehicle with only a drive motor, there are many deficiencies in the technology for calculating the accelerator pedal torque using the existing accelerator pedal torque map. For example, the calculated The torque of the accelerator ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a calculation method, a calculation device, and a vehicle for accelerator pedal torque, so as to solve the problem of vehicle driving irregularities and torque changes that cannot keep up with the driver's desired acceleration intention in the related art due to torque irregularities. Problems with poor driving feeling and poor drivability of the vehicle

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