Energy distribution method for single-shaft parallel-connection hybrid electric bus

Abstract

The invention discloses an energy distribution method for a single-shaft parallel-connection hybrid electric bus. A set of road conditions is set according to the bus speed-time historical statistics information of the city bus, and a corresponding set of optimization control parameters is set according to each road condition; driving parameters are collected automatically in the driving process of the bus, the corresponding road condition is judged, a whole bus controller takes the corresponding optimization control parameter and energy distribution mode, and torque output and energy recovery of a motor and an engine of the bus are optimized and adjusted. The energy resources of the single-shaft parallel-connection hybrid electric bus running in a city can be reasonably distributed, and under the condition that an AMT gearbox is carried, the power performance of the whole bus is satisfied. More importantly, fuel consumption and discharge of pollutants are effectively reduced, and fuel economy is improved.

Description

technical field [0001] The invention relates to an energy distribution method for automobiles, in particular to an energy distribution method for single-shaft parallel hybrid electric passenger cars, and belongs to the technical field of hybrid electric vehicles. Background technique [0002] With the increasing warning of energy shortage, and the huge pressure brought by the increasingly large urban traffic fuel consumption. New energy vehicles including hybrids have become the focus of research in various countries. Due to its good fuel economy and emission performance, hybrid electric buses have great application space and development potential in a period of time in the future. A hybrid electric vehicle refers to a vehicle whose drive system is composed of two or more single drive systems that can operate simultaneously. The energy-saving and low-emission features of hybrid vehicles have aroused great concern in the automotive industry and become a focus of automotive ...

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Problems solved by technology

[0004] In view of the defects in the above-mentioned prior art and current application status, the purpose of the present invention is to propose a vehicle driving engineering that can automatically select the corresponding road conditions based on the collection of vehicle driving parameters, thereby adopting corresponding energy management strategies The energy distribution method of the single-axle hybrid electric bus to solve the problem of poor adaptability of the energy distribution strategy of the current single-axle parallel hybrid electric bus to the working conditions

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