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Data bus for a hybrid vehicle

A technology of hybrid power and data bus, which is applied to hybrid vehicles, motor vehicles, control devices, etc., and can solve problems such as the impossibility of upper-level diagnosis of control equipment

Inactive Publication Date: 2012-09-12
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In modern vehicles with hybrid drives, a cascaded structure of the vehicle control system with several data bus systems is therefore constructed, as a result of which an easy higher-level diagnosis of all control units is not possible

Method used

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  • Data bus for a hybrid vehicle
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Embodiment Construction

[0015] The invention relates to a vehicle control system for a vehicle with a hybrid drive. The hybrid drive has an internal combustion engine, an electric machine and an electrical energy store, wherein the electric machine of the hybrid drive can be operated as a motor and as a generator. In motor operation of the electric machine, the electric machine converts electrical energy into mechanical energy when the electrical energy store is discharged. In generator operation of the electric machine, the electric machine converts mechanical energy into electrical energy while charging the electrical energy store.

[0016] figure 1 The basic structure of a vehicle control system according to the invention for a vehicle with a hybrid drive is shown, wherein first control devices 2 , 3 , 4 and 5 are coupled to first data bus 1 . The control devices 2 , 3 , 4 and 5 are control devices that can also be installed in vehicles with a conventional drive, thus for example an engine contr...

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Abstract

The invention relates to a motor vehicle control system for a motor vehicle having a hybrid drive, wherein first control devices (2, 3, 4, 5, 6), specifically at least one engine control device which is assigned to an internal combustion engine of the hybrid drive and a first diagnostic control device, transmit and receive diagnostic data and / or program data via a first data bus (1), wherein second control devices (6, 8, 9, 10, 11), specifically at least one hybrid control device which is assigned to an electric machine of the hybrid drive and a second diagnostic control device, transmit and receive diagnostic data and / or program data via a second data bus (7), wherein the hybrid control device (6) is connected to the first data bus (1) and to the second data bus (7) and transmits and receives diagnostic data and / or program data via said data busses, and wherein the hybrid control device (6) converts protocols and / or contents of the diagnostic data and / or program data bi-directionally between the first data bus (1) and the second data bus (7).

Description

technical field [0001] The invention relates to a vehicle control system according to the preamble of claim 1 for a vehicle with a hybrid drive as drive unit. Background technique [0002] In conventional vehicles with only an internal combustion engine as drive unit, all control units of the vehicle are connected to at least one common data bus, wherein a plurality of control units send and / or receive data via one or each common data bus. In this case, the control units, in particular the engine control unit, the diagnostic control unit, the brake management control unit and the control unit for driving speed regulation, are connected to one or each common data bus. [0003] Via the or each data bus, the control units send and receive control data, in particular as data, which serve for the actual operation of the respective control unit. As other data, the control device sends and / or receives diagnostic data and / or program data, the diagnostic data serves for the function...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/18B60W50/02
CPCB60W10/06B60W10/08B60W10/184B60W20/00B60W50/0205B60W50/023B60W50/04B60W2050/0045B60W2050/021B60W20/11Y02T10/62B60W10/18
Inventor 马库斯·埃瑟利帕特里克·布莱登巴赫本杰明·温克勒
Owner ZF FRIEDRICHSHAFEN AG