Hybrid vehicle energy recovery system and recovery method

A hybrid vehicle and hybrid system technology, applied in electric vehicles, braking safety systems, electric braking systems, etc., can solve problems affecting the user's driving experience, torque fluctuations, etc., to increase energy recovery power, reduce Battery temperature rise rate, the effect of reducing battery temperature rise

Active Publication Date: 2019-06-21
NINGBO GEELY AUTOMOBILE RES & DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the predicted value is based on the two information of the brake switch and the master cylinder pressure, at the same time, in order to ensure fuel saving efficiency, improve energy recovery efficiency or under certain special working con

Method used

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  • Hybrid vehicle energy recovery system and recovery method
  • Hybrid vehicle energy recovery system and recovery method
  • Hybrid vehicle energy recovery system and recovery method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0052] Example 1:

[0053] Such as Figure 1 to Figure 4 Shown: a hybrid vehicle energy recovery system, including a main control module 1, a motor control module 2, a battery management system 3, a braking module 4, an information receiving module 8 and a brake pedal stroke sensor 6;

[0054] The main control module 1 is used to collect the detection data of the brake pedal stroke sensor 6, and send it to the motor control module 2 according to the current state information of the motor and the internal information of the battery pack received by the information receiving module 8 Information instructions on whether to perform energy recovery and recovery of power requirements, send to the battery management system 3 an information instruction on whether the main relay of the battery pack is allowed to open or close; send to the brake module 4 the braking module that the hybrid power system can currently provide Kinetic capacity

[0055] The motor control module 2 diagnoses the cu...

Example Embodiment

[0076] Example 2:

[0077] Such as Figure 1 to Figure 4 Shown: a hybrid vehicle energy recovery system, including a main control module 1, a motor control module 2, a battery management system 3, a braking module 4, an information receiving module 8 and a brake pedal stroke sensor 6;

[0078] The main control module 1 is used to collect the detection data of the brake pedal stroke sensor 6, and send it to the motor control module 2 according to the current state information of the motor and the internal information of the battery pack received by the information receiving module 8 Information instructions on whether to perform energy recovery and recovery of power requirements, send to the battery management system 3 an information instruction on whether the main relay of the battery pack is allowed to open or close; send to the brake module 4 the braking module that the hybrid power system can currently provide Kinetic capacity

[0079] The motor control module 2 diagnoses the cu...

Example Embodiment

[0102] Embodiment 3: The difference from Embodiment 1 or Embodiment 2 is:

[0103] Specifically, the other control module 5 may be any control module in the above technical solutions that can realize the functions on the book, or a third-party control module (such as meters, multimedia, etc.) to receive the information of assisting the brake pedal stroke sensor 6, and Send to the main control module through the communication module 7.

[0104] Preferably, the communication module 7 is a CAN bus, and the brake pedal stroke sensor 6 is connected to the main control module 1 or other control modules 5 through a hard wire.

[0105] In addition, the main control module 1 can also control and jump to other functions in the hybrid power system according to driving requirements.

[0106] In the above-mentioned embodiment 1 to embodiment 3, the energy recovery can keep the braking torque corresponding to the current recovered power unchanged when monitoring sudden braking conditions, so as to ...

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PUM

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Abstract

The invention discloses a hybrid vehicle energy recovery system, the hybrid vehicle energy recovery system comprises a master control module, a motor control module, a battery management system, a brake module, an information receiving module and a brake pedal stroke sensor; the invention further discloses a hybrid vehicle energy recovery method; the arranged brake pedal stroke sensor can monitorthe whole state of a brake pedal, particularly, an idle stroke section can be used to accurately pre-judge the sliding state of a vehicle actually driven by a user, the corresponding recovery power isoptimized, the fuel saving rate of the actual driving condition of the user is improved, the temperature rise of a battery under the high-speed sliding working condition is effectively reduced, the deviation of different feelings on the pedal at the same power, caused by manufacturing or assembling error, is further eliminated; by reducing the energy recovery power in the high-speed sliding process, the calorific value of the battery in the charging process of the high-frequency working condition is reduced, so that the speed of the temperature rise of the battery is reduced, the energy recovery power is increased when a driver intends to brake, and the better oil saving effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of hybrid vehicles, in particular to an energy recovery system and recovery method for hybrid vehicles. Background technique [0002] With the development of automobile technology and stricter fuel consumption regulations, various forms of hybrid power have emerged as the times require. In many hybrid power systems, energy recovery (including braking energy recovery and coasting energy recovery) is used as a part of each system. An important part of saving fuel. However, while realizing the energy recovery function, it either takes up a lot of cost, or affects the driving experience during energy recovery, and there are also problems such as poor drivability after paying high costs. [0003] The heating principle of the battery is Q=I2RT, R is the inherent property of the battery pack, and T is the uncontrollable driving time. Therefore, the heat generation of the battery pack is reduced by reducing the hig...

Claims

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Application Information

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IPC IPC(8): B60L7/10B60T17/22
Inventor 马恩山
Owner NINGBO GEELY AUTOMOBILE RES & DEV CO LTD
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