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Energy recovery system and method for hybrid electric vehicle

A hybrid vehicle and energy recovery technology, applied in electric vehicles, electric braking systems, vehicle energy storage, etc., can solve the problems of difficult recovery of gliding energy, driving comfort, etc., to ensure driving comfort and prevent excessive temperature. Effect

Pending Publication Date: 2021-09-21
CHONGQING COLLEGE OF ELECTRONICS ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an energy recovery system and method for a hybrid electric vehicle, which solves the technical problem that it is difficult to achieve maximum recovery of sliding energy and ensure driving comfort at the same time

Method used

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  • Energy recovery system and method for hybrid electric vehicle

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Effect test

Embodiment 1

[0041] The embodiment is basically as attached figure 1 As shown, the energy recovery system for hybrid electric vehicles includes:

[0042] The vehicle management module is used to detect the vehicle state data of the hybrid electric vehicle in real time, and send the detected vehicle state data in real time;

[0043]The motor management module is used to detect the motor state data of the hybrid electric vehicle in real time, and send the detected motor state data in real time;

[0044] The battery management module is used to detect the battery status data of the hybrid electric vehicle in real time, and send the detected battery status data in real time;

[0045] The central control module is used to receive vehicle status data, motor status data and battery status data in real time, and determine whether the vehicle status data, motor status data and battery status data all meet the corresponding preset conditions:

[0046] If not, send an instruction for re-testing to ...

Embodiment 2

[0065] The only difference from Embodiment 1 is that when the central control module judges whether the vehicle state data, the motor state data and the battery state data all meet the corresponding preset conditions, relative values ​​are used for judgment. For example, determine whether the coolant temperature is lower than 5% of the coolant temperature threshold, and whether the driving speed is lower than 10% of the driving speed threshold, if so, determine whether the vehicle status data meets the preset conditions; determine whether the battery temperature is lower than the battery temperature 2% of the threshold, and whether the battery charging power is lower than 4% of the battery charging power threshold, and if so, determine that the battery status data meets the preset condition. The recovery execution module controls the motor braking according to the electric braking torque, and in the process of controlling the motor rotation, the functional relationship between ...

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Abstract

The invention relates to the technical field of automobile energy recovery, in particular to an energy recovery system and method for a hybrid electric vehicle, and the system comprises an automobile management module which is used for detecting the automobile state data of the hybrid electric vehicle in real time; a motor management module which is used for detecting the motor state data of the hybrid electric vehicle in real time; a battery management module which is used for detecting the battery state data of the hybrid electric vehicle in real time; a central control module which is used for calculating a motor initial feedback torque according to the automobile state data, calculating a motor constraint feedback torque according to the motor state data, calculating a battery constraint feedback torque according to the battery state data, and determining an electric braking torque; and a recycling execution module which is used for controlling the motor to brake according to the electric braking torque and recycling energy. The technical problem that it is difficult to recover sliding energy to the maximum extent and ensure driving comfort at the same time is solved.

Description

technical field [0001] The invention relates to the technical field of vehicle energy recovery, in particular to an energy recovery system and method for hybrid vehicles. Background technique [0002] A hybrid car usually refers to a car that introduces a more powerful motor and battery on the basis of a traditional car, and is loaded with two power sources. During the driving process of the car, if the torque demand is large, such as acceleration or climbing, the battery is discharged, the motor assists, and the engine and the motor output torque together; on the contrary, if the torque demand is small, such as braking , the motor enters the power generation mode to charge the battery. [0003] For energy recovery of hybrid electric vehicles, there are mainly two ways: one is to convert the kinetic energy of the vehicle into electric energy for recovery when braking; the other is to convert the potential energy of the vehicle into electrical energy for recovery. Using th...

Claims

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Application Information

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IPC IPC(8): B60L7/10B60L15/20B60L58/10
CPCB60L7/10B60L15/2009B60L58/10B60L2240/423Y02T10/70Y02T10/72
Inventor 陈清洪唐长芳王勇梁林娜陈贤丽
Owner CHONGQING COLLEGE OF ELECTRONICS ENG
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