Series connection type hydraulic automobile regenerative braking energy recycling system

Abstract

The invention provides a series connection type hydraulic automobile regenerative braking energy recycling system, and relates to the technical field of mechanical drive. The energy recycling system comprises a hydraulic power source, rear wheel hydraulic drive assemblies and a front axle hydraulic drive assembly. The hydraulic power source comprises an engine, a first clutch and a first variable pump. The engine is connected into the first variable pump after being connected with the first clutch. The rear wheel hydraulic drive assemblies are arranged on wheel edges of rear wheels of an automobile and connected with the first variable pump. The front axle hydraulic drive assembly is connected with a front axle of the automobile and connected with the output end of the first variable pump. The rear wheel edge braking and front axle braking combined braking mode is adopted; according to the difference between the braking mode and various traditional series connection transmission modes, it can be ensured that transmission energy is reliably and effectively recycled, and the overall working stability of a transmission system is also improved.

Description

Technical field [0001] The invention relates to the technical field of mechanical driving, in particular to a series hydraulic automobile regenerative braking energy recovery system and a recovery method thereof. Background technique [0002] With the development of society and economy, the number of car ownership has also increased rapidly, and the pollution problems that follow have become more and more serious. In order to achieve the purpose of energy saving and emission reduction, hydraulic transmission system is a good solution. It includes parallel hydraulic transmission system, series hydraulic transmission system and hybrid hydraulic transmission system. [0003] Among them, the series hydraulic transmission system refers to the connection form of the hydraulic energy regeneration power source and the engine in series. The power unit of the system is mainly composed of an engine and a secondary variable pump / motor. Its basic components and typical structure are as follows...

AI Technical Summary

Problems solved by technology

[0004] The existing braking energy recovery system has the following disadvantages: 1. The stability of the vehicle body is not good during braking; 2. The cost is too high and the control is complicated; 3. The recovered energy is less

In this way, although the stability of the body is much better, the energy recovered by this system has not increased significantly due to the shortcomings of many mechanical structures and low energy conversion efficiency.

Images