Automobile range extender and control method

Abstract

The invention discloses an automobile range extender. The automobile range extender comprises an intelligent management module, an engine control module, an engine ignition control module, an engine,a carburetor of the engine, a generator, and a power battery arranged on an automobile body; the intelligent management module, the engine control module and the engine ignition control module are connected; the intelligent management module is also connected with a CAN communication circuit, a generator output voltage and current detection circuit and corresponding voltage-current sampling / protection circuit, an engine and generator temperature detection, an automatic-manual change-over switch, a manual switch, an air conditioner signal and power battery voltage and temperature detection; therange extender increases the endurance mileage of low-speed electric vehicle, solves the mileage anxiety of the low-speed electric vehicle, prolongs the service life of the battery, solves the low-temperature use heating problem of the battery, improves the use comfort of the low-speed electric vehicle, expands a use range of the low-speed electric vehicle, and breaks through the market bottleneck of the low-speed electric vehicles at the present stage.

Description

technical field [0001] The invention relates to an automobile auxiliary device, in particular to an automobile range extender and a control method. Background technique [0002] At present, new energy vehicles are roughly divided into: pure electric vehicles, plug-in hybrid vehicles, series hybrid vehicles (range-extended hybrid vehicles), series-parallel hybrid vehicles, parallel hybrid vehicles, hybrid hybrid vehicles Hybrid electric vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. The range-extended hybrid electric vehicle\series hybrid electric vehicle engine generator system "electric vehicle intelligent range extender" has a simple mechanical structure, uses a small-displacement single-cylinder engine, and the speed is stable in the high-efficiency area when generating power, and the engine works Higher efficiency, less fuel consumption, low exhaust emissions, more fuel-efficient than traditional low-speed vehicles, and increased cruising range of...

AI Technical Summary

Problems solved by technology

[0003] The current range extender in the field of low-speed electric vehicles is basically modified on the basis of gasoline generators. It does not meet the automotive specifications, and can only charge the battery or directly supply power to the motor controller, without considering harmful gas emissions and engine work efficiency.

The air-fuel mixture ratio is fixed by the mechanical adjustment of the carburetor, and the ignition advance angle is determined by the crankshaft position ignition signal sensor. When the engine is working, it cannot be automatically adjusted according to the engine working conditions, and the temperature cannot be corrected. Therefore, the fuel consumption is relatively large and the emission cannot be achieved. control

Images