Method for controlling a secondary energy storage

An electric energy storage system and control unit technology, which is applied in the direction of transmission control, power consumption device, components with teeth, etc., can solve the problems of depleted battery state of charge, disadvantage, deterioration of vehicle functions, etc., to ensure driving performance. , The effect of low exhaust emission and low fuel consumption

Inactive Publication Date: 2013-02-27
VOLVO TRUCK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the electric auxiliary loads continue to draw power, they will deplete the battery state of charge and will have to disconnect the battery to prevent serious battery damage
This degrades vehicle functionality in an unfavorable way when power to auxiliary equipment is lost

Method used

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  • Method for controlling a secondary energy storage
  • Method for controlling a secondary energy storage
  • Method for controlling a secondary energy storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 An example embodiment of a hybrid vehicle 100 according to the present invention is depicted. The hybrid vehicle 100 includes an internal combustion engine 102 , a rechargeable electrical energy storage system 106 , a motor drive system 104 , a control unit 107 , a clutch 103 , a switch 105 and a transmission 108 .

[0028] The internal combustion engine 102 may be a diesel engine, a gasoline engine, a flex-fuel engine, or a gas engine, among others. An engine may have one or more cylinders, any cylinder volume may be selected according to the particular circumstances in which the engine is used.

[0029] The clutch 103 can be arranged between the internal combustion engine 102 and the electric machine 104 . Clutch 103 may be a dry clutch or a wet clutch. One or more discs may be used in clutch 103 . The clutch 103 can be at least set in at least one engaged or disengaged position. When the clutch 103 is in the engaged position, the rotational force provid...

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PUM

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Abstract

The present invention relates to a method for controlling a hybrid vehicle in an emergency situation. Said hybrid vehicle comprising an internal combustion engine, a rechargeable electric energy storage system, and an electrical motor drive system. Said method comprising the actions of: detecting a failure of a control unit for controlling the electrical motor drive system, disconnecting the rechargeable electric energy storage system from the hybrid vehicle, limiting the maximum speed of the internal combustion engine from a first RPM value to a second RPM value. The invention also relates to an apparatus for controlling a hybrid vehicle in an emergency situation and a computer program storable on a computer readable medium, comprising a program code for use in an on-board- diagnosis method for controlling a hybrid vehicle in an emergency situation.

Description

technical field [0001] The invention relates to a method for controlling a hybrid vehicle according to the preambles of the independent claims. Background technique [0002] A hybrid electric vehicle consists of a primary energy source (engine) and a secondary energy storage (rechargeable energy storage). There is at least one motor drive (motor, power electronic frequency converter and control unit) that can provide power to the battery for charging, can regeneratively brake and / or can assist the engine in providing traction to the vehicle. [0003] For hybrid electric vehicles equipped with batteries or supercapacitors etc., usually the auxiliary systems are powered by the traction battery and not from the mechanical belt or similar from the engine. The reason for this may be to enable electric drive only (engine cut-off), thereby cutting the engine to reduce engine idle speed and / or to obtain increased efficiency. [0004] Examples of auxiliary systems that can be drive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/26B60L3/00B60W10/06B60W10/30B60W20/00
CPCF16H2061/126B60L3/0084B60W10/06B60W2710/0644B60W10/26B60W50/038Y10S903/93B60W20/50B60L3/04B60W20/00B60W50/0205B60W2710/242B60W10/08
Inventor 安德斯·拉松
Owner VOLVO TRUCK CORP
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