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Wire harness arrangement structure

A wire harness and construction technology, applied in the direction of electric circuits or fluid pipelines, vehicle components, transportation and packaging, etc., can solve problems such as control failure

Inactive Publication Date: 2018-02-06
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the component control unit is used to control the electrical components responsible for driving the vehicle, such as the engine, transmission, brake, and steering device, then the disconnection of the information transmission from the main control unit to the component control unit means, "to make the vehicle move forward" , "Reverse the vehicle", "Change the direction of travel of the vehicle", "Stop the vehicle" and other controls related to the basic actions of the vehicle cannot be executed

Method used

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Examples

Experimental program
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Effect test

no. 1 Embodiment approach ＞

[0045] The inventors of the present invention have developed a control system including a main control unit and a plurality of component control units. The main control unit comprehensively controls the plurality of component control units. The plurality of component control units respectively control corresponding electrical components (such as a brake, an engine, a transmission, and a steering device). The main control unit sets an operation target (for example, a target value of braking force, an engine speed, a target value of friction force, a steering direction, or a steering angle) for electrical components according to the running environment of the vehicle. A command signal indicating an operation target is output from the main control unit to the plurality of component control units. The plurality of component control units respectively control the corresponding electrical components, so that the corresponding electrical components achieve a required operation targe...

no. 2 Embodiment approach ＞

[0054] The main control unit can be connected to various control units (that is, CPU (Central Processing Unit)) that control the vehicle. In this case, the designer can use the multi-wire connection structure of the wire harness to respectively connect a plurality of CPUs responsible for driving the vehicle, such as the main control unit, the brake, the engine, the transmission, and the steering device. On the other hand, the designer may use the single-wire connection structure of the wiring harness to connect the main control unit and another CPU (that is, a CPU that performs control not related to driving of the vehicle). In this case, the total weight of the plurality of wire harnesses connecting the main control unit and the plurality of CPUs does not increase unnecessarily. In the second embodiment, an exemplary arrangement structure of a wire harness having a double-wire connection structure and a single-wire connection structure will be described.

[0055] figure 2 ...

no. 3 Embodiment approach ＞

[0090] A designer can design various arrangement structures of the wire harness based on the design principles described in connection with the above-mentioned embodiments. In the third embodiment, an exemplary arrangement structure of the wire harness will be described.

[0091] image 3 It is a conceptual block diagram of the arrangement|positioning structure (henceforth the arrangement|positioning structure 100B) of the wire harness of 3rd Embodiment. refer to image 3 The arrangement structure 100B will be described. In the description of the above-mentioned embodiment, elements assigned the same reference numerals as in the above-mentioned embodiment are used.

[0092] image 3 It is a schematic plan view of vehicle VCL. Vehicle VCL includes bumper BMP and engine bulkhead DSP. The bumper BMP forms the front end of the vehicle's VCL. The engine partition DSP divides the space inside the vehicle VCL into the engine compartment and the compartment. The engine compart...

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Abstract

The present invention relates to a wire harness arrangement structure capable of reliably transmitting information of a main control part to component control parts. The wire harness arrangement structure comprises plural component control parts to control plural electric components for governing a drive of the vehicle, a main control part to generate a command signal for providing a command to the plural component control parts, and plural main wire harnesses to transmit the command signal to the plural component control parts. The plural electric components include at least a brake, an engine, a transmission, and a steering, the plural main wire harnesses comprise first signal transmission routes which extend from the main control part to the plural component control parts, respectively,and second signal transmission routes which extend from the main control part to the plural component control parts, respectively, and the command signal is transmitted to the main control part to the plural component control parts through the first and second signal transmission routes.

Description

technical field [0001] The present invention relates to signaling technology in vehicles. Background technique [0002] Various autonomous driving technologies have been developed in recent years. For example, one of a plurality of CPUs (Central Processing Units) mounted on a vehicle may be used as a main control unit that comprehensively controls the other CPUs. The main control unit determines the speed of the vehicle, the acceleration of the vehicle, the direction of travel of the vehicle, the braking force acting on the vehicle, and the frictional force transmitted from the vehicle to the road surface based on information from various sensors or cameras mounted on the vehicle. value. These target values ​​determined by the main control unit are transmitted to other CPUs via a harness (see Patent Document 1). [0003] The other CPUs are used as component control units that control corresponding electrical components (eg, engine, transmission, brake, and steering). The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02B60R16/023
CPCB60R16/02B60R16/023B60R16/03B60R16/0207B60R16/0231
Inventor 清水雅昭玉川太郎山田祯久道平修
Owner MAZDA MOTOR CORP