Kinetic energy recovery controller for electric vehicle

Abstract

The invention provides a kinetic energy recovery controller for an electric vehicle, and belongs to the technical field of energy recovery of the electric vehicle. The controller and a motor controller are jointly connected in parallel onto three output wires of a motor stator; a start-stop switch is mounted on a speed regulating assembly of the electric vehicle; during freewheeling, kinetic energy of the vehicle is converted into three-phase alternating current electric energy through the motor; and the controller can automatically select and recover gliding kinetic energy produced when the vehicle speed is close to or exceeds the average moving speed per hour in the city, capacitors are connected in series firstly, three-phase bridge rectification and direct current bridge type series connection boosting are performed, and the energy is fed back to batteries for storage finally. The kinetic energy recovery controller is characterized in that: 1), a control switch power supply adopts kinetic energy power; 2), a three-phase bridge rectification and direct current bridge type series connection circuit is adopted to design kinetic energy rectification and kinetic energy boosting; and 3), the capacitors are adopted to design kinetic energy recovery degree. The controller has simple design and comes onto the market in an embedded module manner, a safe and energy-saving mode is provided for medium-and-high-speed gliding of the electric vehicle in gear, the safety factor and the control performance of the electric vehicle can be improved, and the endurance mileage of the electric vehicle can be increased by about 20%.

Description

technical field

[0001] The invention relates to a vehicle kinetic energy recovery device for an electric vehicle coasting, in particular to a kinetic energy recovery controller for an electric vehicle capable of solving kinetic energy boosting, kinetic energy rectification, kinetic energy recovery strength, and selective recovery and automatic control of kinetic energy. Background technique

[0002] New energy electric vehicles have attracted widespread attention due to their advantages such as low cost of use and environmental protection. Due to the short cruising range, inconvenient use has become the biggest bottleneck. Under the condition that the battery technology is insurmountable, it is imperative to find other ways to increase the cruising range.

[0003] At present, for domestic low-end electric vehicles, especially electric bicycles, the recovery of vehicle sliding kinetic energy seems to have not attracted the attention of manufacturers, and it is almost blank i...

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