Intelligent timely driving linkage system of electric vehicle and control method thereof

Abstract

The invention discloses an intelligent timely driving linkage system of an electric vehicle and a control method of the intelligent timely driving linkage system. The system comprises a rear wheel drive motor, a rear wheel controller, a front wheel drive motor, a front wheel controller, a tile angle sensor and a reset switch. The intelligent timely driving linkage system has the advantages that the problems existing in torque and platform efficiency when the electric vehicle works at a large load are solved, and motor torque of front and rear dual drive is double that of common single drive; the maximum current when the electric vehicle works at the load is shared by the front wheel drive motor and the rear wheel drive motor, the two motors are both in the optimal working efficiency state, and therefore the traveling distance and endurance mileage are greatly increased; when the whole electric vehicle is in a large load state, front and rear wheels are driven at the same time, and torsion is utilized to the maximum degree; the riding state of the whole vehicle is intelligently judged, according to riding requirements, automatic switching is performed to achieve rear wheel single drive or front and rear wheel dual drive, large current of instant starting and current of small-load driving are controlled, and therefore the power bottleneck of the electric vehicle is broken, and the endurance mileage is guaranteed to the maximum degree.

Description

technical field [0001] The invention relates to the technical field of electric vehicle drive, in particular to an electric vehicle timely intelligent drive linkage system and a control method thereof. Background technique [0002] At present, when riding an electric vehicle, either the front-wheel drive alone or the rear-wheel drive alone, among which the rear-wheel drive is more common. But, the serious problem that this single drive of electric vehicle brings is exactly power shortage problem, namely load problem and climbing problem. When the electric vehicle is single-driven, the climbing load torque can only be increased by increasing the motor power, which has the following four hidden dangers and defects: 1. After the motor power is increased, the controller current needs to be increased to support it, although The climbing ability is improved, and the working current of the normal driving of the whole vehicle is also increased, which greatly shortens the battery li...

AI Technical Summary

Problems solved by technology

However, the serious problem brought by this single drive of the electric vehicle is exactly the power shortage problem, that is, the load problem and the climbing problem.

When the electric vehicle is single-driven, the climbing load torque can only be increased by increasing the motor power, which has the following four hidden dangers and defects: 1. After the motor power is increased, the controller current needs to be increased to support it, although The climbing ability is improved, and the working current of the normal driving of the whole vehicle is also increased, which greatly shortens the battery life of the electric vehicle, and the frequent instantaneous high current, due to the limited service life of the electrical components, the wire material is easy to age, break the skin, short circuit

2. In order to meet the load climbing ability, if the power of a single motor is excessively increased, the speed of the motor will increase accordingly. Riding at high speed will bring safety hazards to the frame and shock absorbers, and the power current will be increased too much. The rearward inertia of the car's instant start increases, which poses a great hidden danger to the safety of the rider

3. Most of the motor materials are medium and low-grade materials. When working with large load and high current, the conversion efficiency is very low and the energy consumption is too much. In order to improve the platform efficiency and output power, it is necessary to increase too much useless material cost, and then lead to waste of energy and resources

4. After the drive system fails, the single-drive electric vehicle can only be pushed forward by manpower or with the help of other tools, which brings great inconvenience to users

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