Series-parallel gas-electric hybrid vehicle power system and control method

Abstract

Provided are a series-parallel gas-electric hybrid vehicle power system and a control method. The system comprises a complete vehicle controller, an engine, an ISG motor, a drive motor, a super capacitor bank and a DC/DC converter, wherein a clutch I is in transmission connection to the engine and the ISG motor, a clutch II is connected between the front end of the ISG motor and the drive motor. The rear end of the drive motor is in transmission connection to the ISG motor and the front end of the drive motor, the back end of the drive motor is connected to a transmission shaft capable of driving wheels, the ISG motor, an ISG motor controller and a high-tension distribution box form a circuit, the drive motor, a drive motor controller and the high-tension distribution box form a circuit, apower battery and the super capacitor bank are arranged in parallel and form a circuit with the high-tension distribution box, and the DC/DC converter is connected to the power battery and the high-tension distribution box; and the control method mainly comprises a power consumption stage and a power recovery stage. The series-parallel gas-electric hybrid vehicle power system and the control method improve the operational efficiency of the gas-electric hybrid vehicle.

Description

technical field [0001] The invention relates to the technical field of energy saving of new energy vehicles, in particular to a power system and a control method of a hybrid gas-electric hybrid vehicle. Background technique [0002] With the increasing use of fossil energy in the world, it has caused very serious environmental pollution problems. In order to prevent the depletion of fossil energy and reduce the current air pollution problem, the country attaches great importance to the development of the new energy automobile industry and provides subsidies. Major scientific research institutions, colleges and automobile manufacturers are doing their best to develop more energy-saving, more environmentally friendly, energy-saving alternatives A new type of vehicle powered by conventional energy. Currently the most researched new energy vehicles can be divided into three categories: pure electric vehicles, hybrid vehicles and fuel cell vehicles. In a short period of time, i...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a power system and control method of a hybrid gas-electric hybrid vehicle. The control method mainly includes the power consumption stage and the power recovery stage, which solves the problem of few hybrid charging piles in the city at present, and can improve the power consumption of gas-electricity. Hybrid operating efficiency and natural gas savings

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