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An energy distribution method and device for a series hybrid vehicle

A hybrid vehicle and energy distribution technology, applied in hybrid vehicles, power units, pneumatic power units, etc., can solve problems such as reducing emission and economic performance, and achieve the effect of optimizing energy balance control and protecting batteries

Active Publication Date: 2018-05-11
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is to optimize the energy balance in the series mode process, minimize emissions and improve economic performance

Method used

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  • An energy distribution method and device for a series hybrid vehicle
  • An energy distribution method and device for a series hybrid vehicle
  • An energy distribution method and device for a series hybrid vehicle

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Embodiment Construction

[0025] The first embodiment of the present invention provides an energy distribution method for a series hybrid electric vehicle, which can be executed by the vehicle controller of the motor vehicle, such as figure 2 The method shown includes:

[0026] S1, obtain the required power of the vehicle and the current state of charge value of the battery. The vehicle controller has an interface to connect with the battery management system, the drive motor controller, the generator controller and the engine controller. The required power of the vehicle usually refers to the power that needs to be used in the current running state of the vehicle. This value can be calculated by The output parameters of the drive motor are obtained. The battery SOC) can be directly obtained through the output parameters of the battery management system, for example, the range of SOC is 0-1, 0 means that the remaining power is 0, and 1 means full power.

[0027] S2. Determine the required power corr...

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Abstract

The invention provides an energy distribution method and device used for a series type hybrid electric vehicle. The method includes the steps that the whole vehicle needed power and a current state-of-charge value of a battery are obtained; according to the current state-of-charge value and a preset equilibrium state value, a needed power correction factor is determined; the generated power is obtained and is a product of the needed power and the needed power correction factor; and a table is searched according to the generated power, so that the engine rotation speed corresponding to the generated power is obtained. Therefore, the battery can be effectively protected, and the energy equilibrium control in a series mode can be optimized.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicle energy control, in particular to an energy distribution method and device for series hybrid electric vehicles. Background technique [0002] At present, according to the connection mode of the hybrid drive of the hybrid electric vehicle, it is mainly divided into three categories: 1. series hybrid system, 2. parallel hybrid system, and 3. hybrid hybrid system. Among them, the series hybrid system (Series Hybrid) generally uses the internal combustion engine to directly drive the generator to generate electricity. The generated electric energy is transmitted to the battery through the control unit, and then the battery is transmitted to the drive motor to convert it into kinetic energy, and finally drives the car through the transmission mechanism. In this connection mode, the battery needs to adjust between the energy generated by the generator and the energy required by the electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/10B60K6/46
CPCY02T10/62Y02T10/84
Inventor 苗壮
Owner BEIQI FOTON MOTOR CO LTD
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