Front-end wheel train driving power generation system and method and vehicle

Abstract

The invention discloses a front-end wheel train driving power generation system and method and a vehicle. The system comprises an engine, a gearbox, an engine controller, a high-voltage generator, a transfer case, a high-voltage generator controller, a distribution box, a power battery and a power battery controller, wherein the gearbox, the engine controller and the high-voltage generator are arranged on the engine; the transfer case is arranged on the gearbox; the high-voltage generator controller is connected with the high-voltage generator; the distribution box is installed on the high-voltage generator controller, the power battery and the power battery controller are installed on the distribution box; the high-voltage generator is arranged at the front end of the engine, the high-voltage generator is driven by a belt pulley system at the front end of the engine to generate electricity, stable high-voltage direct current is output to the distribution box after rectification and voltage stabilization are carried out through the high-voltage generator controller, and the distribution box allocates different power outputs according to the actual electricity demand of each upper load connected to the distribution box. Therefore, stable high-power generation output can be realized during driving and parking of the vehicle; meanwhile, the power generation controller coordinates and controls the power generation system to work through a CAN bus and detects system faults, and high-voltage power utilization safety of the vehicle is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of vehicle power generation, and more specifically relates to a front-end wheel train driving power generation system, method and vehicle. Background technique [0002] With the increasing demand for motorization of special vehicles and special-purpose vehicles, high-power on-board body systems are becoming more and more popular. Therefore, the demand for high-power general-purpose power supply chassis vehicles is increasing. [0003] At present, there are various forms of vehicle power generation in the market, which are mainly divided into the following categories: engine belt drive power generation, gearbox / transfer case power generation, independent generator set power generation, and engine flywheel direct-connected motor power generation. Engine belt-driven power generation can only provide low-voltage direct current below 8kW under normal conditions; gearbox / transfer case power generation can only pro...

AI Technical Summary

Problems solved by technology

Engine belt-driven power generation can only provide low-voltage direct current below 8kW under normal conditions; gearbox / transfer case power generation can only provide stable current when the vehicle is parked, and an additional energy storage device is required for power compensation when the vehicle is running; The power supply quality of the independent generator set is relatively stable and reliable, but it will occupy the chassis space, increase the weight of the vehicle, and affect the maneuverability and modification performance of the vehicle; the flywheel direct-connected motor power generation system uses a generator arranged at the rear output end of the engine, and the generator is directly connected to the crankshaft of the engine , although it can provide high-power and relatively stable power supply requirements, the decoupling performance of the generator and the engine is poor, which is not conducive to the energy recovery of the entire system

At the same time, the size of the generator is relatively large, and a flywheel motor is added between the engine and the gearbox. The length of the entire power transmission chain increases, which takes up a lot of space in the chassis, and increases the difficulty of powertrain layout under the premise of limited chassis space. The flywheel motor The weight of the vehicle is relatively heavy, which brings great difficulties to the lightweight design of the vehicle

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