Power source system

一种电源系统、电源的技术，应用在控制系统、电气元件、电动转向机构等方向，能够解决电路配置复杂等问题

Pending Publication Date: 2020-12-15
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the ground is provided separately for each system, system to system, as in Patent Document 1, a ground disconnection detection circuit for preventing a ground current from flowing from an abnormal system to a normal system when the ground is disconnected is required. limit circuit, etc., which complicates the circuit configuration

Method used

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no. 1 approach

[0027] Hereinafter, a power supply system according to the present disclosure is described with reference to the accompanying drawings. In the various embodiments described below, substantially the same components are denoted by the same reference numerals to eliminate redundant descriptions.

[0028] exist Figure 1 to Figure 11 The first embodiment is shown in . Power System 1 (see Figure 10 ) is applied to, for example, an electric power steering device 8 for assisting a steering operation of a vehicle. figure 1 The configuration of a steering system 90 including the electric power steering device 8 is shown. The steering system 90 includes a steering wheel 91 as a steering member, a steering shaft 92 , a pinion 96 , a rack shaft 97 , wheels 98 , the electric power steering device 8 , and the like.

[0029] The steering wheel 91 is connected to a steering shaft 92 . A torque sensor 94 is provided on the steering shaft 92 to detect steering torque. The torque sensor 9...

no. 2 approach

[0100] The second embodiment is Figure 12 to Figure 14 shown in . In the above embodiment, the system number of +α connectors is provided, and the common ground Gc and the vehicle body 500 are connected via independent, ie, respectively different, connectors. Such as Figure 12 with Figure 13 As shown, in the ECU 11 of the driving device 41 of the present embodiment, the number of connectors is two, and the third connector 303 of the above embodiment is omitted. Alternatively, in this embodiment, redundant grounding is provided by electrically connecting the motor housing 830 and the vehicle body 500 .

[0101] Specifically, as Figure 14As shown, the connection member 885 is sandwiched between the protruding portion 832 and the fixing member 881, and the wire harness 886 electrically connected to the connection member 885 is connected to the vehicle body 500 through the ground plane node NP3, which is different from the connection The node of the ground plane nodes NP1...

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Abstract

The invention provides a power source system. In the power source system, circuit units by the number of systems n or more are respectively connected correspondingly to power sources by the number ofn (n is an integer of 2 or more). A common ground is all of the circuit units in common. A ground wiring portion establish node-to-node connection between (n+alpha) pieces of common ground nodes NC(1)to NC(n+alpha) provided in the common ground and (n+alpha) pieces of ground plane nodes NP(1) to NP(n+alpha) provided on a vehicle body in an independent manner, thereby enabling a simple configuration of redundant circuits that can withstand multipoint failures without separating the ground for each system.

Description

technical field [0001] The present disclosure relates to power systems. Background technique [0002] Related technologies include motor controls that make external power sources redundant. For example, in Patent Document 1, two different external power sources are respectively connected to two ECUs (ie, electronic control units) via different power ground lines, and the configuration of the external power sources is made redundant together with the motor control system. [0003] (Patent Document 1) Japanese Patent Laid-Open No. 2018-42403 [0004] If the ground is provided separately for each system, system to system, as in Patent Document 1, a ground disconnection detection circuit for preventing a ground current from flowing from an abnormal system to a normal system when the ground is disconnected is required. limit circuit, etc., which complicates the circuit configuration. Contents of the invention [0005] An object of the present disclosure is to provide a power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/48H02M1/32H02P27/06
CPCH02M7/48H02M1/32H02P27/06H02M1/325B62D5/0403B62D5/0484H02M7/53871H02M7/003H02M1/0009H02M1/008B60R16/03B62D5/04H02M7/537
Inventor 株根秀树
Owner DENSO CORP
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