Vehicle mounted intelligent relay

A technology of relays and electromagnetic relays, applied in circuit breaker testing, electrical components, circuit devices, etc., can solve problems such as user inconvenience, inability to monitor current, and inability to realize optimal control of overcurrent faults, so as to prevent excessive discharge and improve reliability Effects on sex and safety

Inactive Publication Date: 2008-09-24
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control method is simple, but it cannot monitor the current of the circuit controlled by the relay, and cannot achieve optimal control of overcurrent faults. The fuse needs to be replaced after it is blown, which causes inconvenience to users.
At the same time, the existing electromagnetic relay's power on-off control method cannot realize the fault diagnosis of the relay itself.

Method used

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  • Vehicle mounted intelligent relay
  • Vehicle mounted intelligent relay
  • Vehicle mounted intelligent relay

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Embodiment Construction

[0018] The vehicle-mounted intelligent power management system proposed by the present invention is described in detail in conjunction with the accompanying drawings and embodiments as follows:

[0019] Vehicle-mounted intelligent relay of the present invention, its structure is as figure 1 As shown, it is composed of the controller external circuit I and the controller II, and the controller external circuit I and the controller II circuit are connected through the internal interface of the controller II.

[0020] The external circuit I of the controller is composed of an input terminal A, a current sensor, an electromagnetic relay C and an output terminal B connected in sequence.

[0021] In the external circuit I of the controller, the input terminal A is the power input, the output terminal B is the controllable electrical output, and the contacts of the electromagnetic relay C are respectively connected to the input terminal A and the output terminal B. A current sensor ...

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Abstract

The invention relates to a vehicle intelligent relay which belongs to the field of automobile and electric control technology. The relay consists of an outer circuit of a controller and the controller; the outer circuit of the controller and a circuit of the controller are connected through an internal interface of the controller; the outer circuit of the controller consists of an input post head A, a current sensor, an electromagnetic relay C and an outer post head B connected in turn; the controller consists of a current sensing signal processing circuit, a coordinative protection circuit, a relay drive circuit, a contact diagnostic circuit, an MPU, a bus communication module as well as an internal interface connected with the outer circuit of the controller and a bus interface connected with the bus; the invention is applied to the power supply on-off control of the automobile of the bus technology and simultaneously carried out fault diagnosing on the self of the electromagnetic relay. The relay of the invention has the advantages of simple structure, convenient mounting and high practicability.

Description

technical field [0001] The invention belongs to the technical field of automotive electronic control, in particular to a vehicle-mounted intelligent relay used for electrical power supply control of an automotive electrical system. Background technique [0002] With the development of automotive electronic and electrical technology, there are more and more electrical equipment on the car, which not only brings ride comfort, but also greatly increases the requirements for power consumption, and the use of relays in automotive electrical systems is also increasing. widely. [0003] In the existing automotive electrical system, the secondary coil of the electromagnetic relay is connected in series with the switch, and the switch controls the power on and off of the secondary coil of the relay, thereby realizing the control of the power on and off of the path controlled by the relay; the electromagnetic relay is connected in series with the blown fuse, When over-current or shor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/08H02H3/06G01R31/327
Inventor 连小珉杨殿阁陆良张新丰薛雯郑四发罗禹贡李克强王建强
Owner TSINGHUA UNIV
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