Ramp way control method of pure electric vehicle

Abstract

The invention discloses a ramp way control method of a pure electric vehicle. The ramp way control method of the pure electric vehicle includes the following steps: collecting angle information of a full vehicle and judging a running state of the full vehicle according to the angle information; acquiring state information of the full vehicle when the running state of the full vehicle is judged as an uphill state, and judging whether the full vehicle is in an uphill starting state according to the state information of the full vehicle, wherein the state information of the full vehicle comprises a current speed of the full vehicle; and comparing the current speed of the full vehicle with a target speed and calculating uphill starting torsion of the full vehicle when the full vehicle is in the uphill starting state, and sending the uphill starting torsion of the full vehicle to a motor control system of the full vehicle to drive the full vehicle to output corresponding torsion. According to the ramp way control method of the pure electric vehicle, a torsion request numerical value when the vehicle runs on a ramp way is calculated according to a current state of the full vehicle, accordingly the corresponding torsion is output by the motor control system, so that safe reliability and comfort when the full vehicle runs on the ramp way are guaranteed.

Description

technical field [0001] The invention relates to the technical field of electric vehicle control, in particular to a ramp control method for pure electric vehicles. Background technique [0002] A pure electric vehicle is a vehicle that uses a single battery as an energy storage power source. It uses a motor control system and a high-voltage battery system to replace the original engine power system. The battery provides electric energy to the motor to drive the motor to run, thereby pushing the car forward. From the appearance point of view, there is no difference between an electric car and a car seen in daily life, the difference mainly lies in the power source and its drive system. [0003] Since the pure electric vehicle does not have an idle function of the motor itself, when the pure electric vehicle is running on a slope, it will bring inconvenience to the driver under certain conditions. Therefore, the control of pure electric vehicles on slopes is particularly impo...

AI Technical Summary

Problems solved by technology

In the process of normal driving uphill, there will be problems such as lack of power and the vehicle slipping backwards, and the motor is blocked and burned due to high-power discharge but the vehicle does not move.

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