CN201183472Y

CN201183472Y - External rear view mirror LIN bus module control device

Info

Publication number: CN201183472Y
Application number: CNU2008200560855U
Authority: CN
Inventors: 傅杰
Original assignee: Magna Donnelly (shanghai) Automotive Systems Co Ltd
Current assignee: MAGNA AUTOMOTIVE MIRROR (SHANGHAI) CO., LTD.
Priority date: 2008-03-11
Filing date: 2008-03-11
Publication date: 2009-01-21
Anticipated expiration: 2018-03-11

Abstract

The utility model discloses an LIN (Local Interconnect Network) bus module control device of an external rearview mirror, which comprises an LIN bus transceiver, a main control module, a power drive module and a regulated power supply, wherein, the input end of the LIN bus transceiver is connected with an external LIN bus for receiving a control signal sent by the external LIN bus, then the control signal is sent to the main control module, and the state signals of the ECU (Electronic Control Unit) parts of the external rearview mirror is sent to the external LIN bus; the main control module sends a corresponding drive signal to the power drive module according to the control signal sent by the LIN bus transceiver; the power drive module drives a corresponding ECU part according to the drive signal sent by the main control module. Through the LIN bus module control device of the external rearview mirror, the ECU parts on the external rearview mirror of an automobile are connected with a door control LIN net, thereby reducing the length of the quantity of cables used by the external rearview mirror, improving the reliability of data transmission, and being easy to be assembled and installed.

Description

Outside rear-view mirror LIN bus module control setup

Technical field

The utility model relates to the control setup of automobile rearview mirror, especially a kind of data exchange bus module control setup of electronic control unit.

Background technology

The automobile outer rear-view mirror of initial design, for driver's observation vehicle ' situation provides convenience, but the function that is provided with is very simple, has any additional function hardly.The widespread use on automobile along with integrated circuit and micro controller system, make on the automobile more and more by the number of components of electronic control unit (ECU) control, be applied in ECU parts such as motor on the outside rear-view mirror, sensor and increased electric foldable, electric powered steering, multiple utility function such as anti-dazzle, electric defrosting, memory module, signal prompt automatically to outside rear-view mirror, these functions have satisfied people's diversified demand, and some problems in the back mirror design production also occur thereupon.

On the one hand, need many cables finish the task of transmitting a kind of ECU unit control signal data separately, be difficult to guarantee reliability of data transmission, safety and to the timely response of instruction etc.; On the other hand, use many cables can increase cost, each ECU parts all needs a cable to be connected to the back mirror outside, and cable is many and long, influences the motion of movable part in the back mirror easily.And the coexistence of many cables causes the fitting process complexity, and difficulty increases, and the error protection ability of part and the production efficiency of fitting work all reduce greatly.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the above-mentioned defective of prior art, a kind of outside rear-view mirror LIN bus module control setup is provided, use this control setup can significantly reduce the length and the quantity of cable, improve reliability of data transmission, and be easy to the assembling installation.

The technical scheme that the utility model adopted is: a kind of outside rear-view mirror LIN bus module control setup, outside rear-view mirror comprise several ECU parts, and control setup comprises LIN bus transceiver, master control module, power driver module and constant voltage power suspply, wherein:

The LIN bus transceiver, input end links to each other with outside LIN bus, is used to receive the control signal that transmits from outside LIN bus, sends this control signal to the master control module then, and the status signal of the ECU parts of outside rear-view mirror is sent to outside LIN bus;

The master control module links to each other with the mouth of LIN bus transceiver, and the control signal according to the LIN bus transceiver transmits sends the corresponding driving signal to power driver module;

Power driver module, input end links to each other with the master control module, and mouth links to each other with the ECU parts, according to the corresponding ECU parts of drive of master control module transmission;

Constant voltage power suspply links to each other with the master control module, is used to the power supply of outside rear-view mirror LIN bus module control setup.

Above-mentioned outside rear-view mirror LIN bus module control setup, wherein, the ECU parts comprise folding motor, deflector, heating plate and electrochromism eyeglass, deflector comprises steering motor; Power driver module comprises the folding electric-motor drive unit, the steering motor driver element that is used to drive steering motor that are used to drive folding motor, be used to the electrochromism eyeglass driver element that drives the heating plate driver element of heating plate and be used to drive the electrochromism eyeglass; The input end of folding electric-motor drive unit, steering motor driver element, heating plate driver element and electrochromism eyeglass driver element all links to each other with the master control module, and mouth is corresponding with folding motor, steering motor, heating plate and electrochromism eyeglass respectively to link to each other.

The utility model has the advantages that:

1. each ECU parts on the automobile outer rear-view mirror are connected with car door control LIN network by outside rear-view mirror LIN bus module control setup of the present utility model, outside rear-view mirror LIN bus module control setup is connected with car door control LIN network only needs three wire harness, compared with prior art, reduce the length and the quantity of cable that outside rear-view mirror is used, reduced the cost of outside rear-view mirror;

2. by LIN bus module control setup, all the ECU parts on the outside rear-view mirror only pass the back by three wire harness and are connected with car door control LIN network from outside rear-view mirror inside, and its fitting process is simple, and production efficiency is guaranteed;

3. the shape of the connector that the utility model adopted can be done corresponding variation according to institute's bonded assembly ECU parts, can improve part error protection ability;

4. master control module of the present utility model adopts high-new energy micro controller system, to realize the switching task of each ECU parts data, has improved reliability of data transmission, safety effectively, can make response rapidly to command adapted thereto;

5. LIN bus transceiver of the present utility model and driver module standard are deferred to the ISO9141 standard, and the EMI performance increases, and have guaranteed the interoperability of node of network on hardware and software;

6. only need adjust the control and the drive program of master control module of the present utility model, just can satisfy the demand of expansion ECU functional component.

Description of drawings

Fig. 1 is a functional block diagram of the present utility model;

Fig. 2 is schematic circuit diagram of the present utility model;

Fig. 3 is the structural representation behind the utility model connection cable.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is made and to be further specified.

With reference to Fig. 1 and 2, outside rear-view mirror LIN bus module control setup 2 of the present utility model comprises LIN bus transceiver 21, constant voltage power suspply 22, master control module 23 and power driver module 24, wherein, the input end of LIN bus transceiver 21 connects car door control LIN network, the LIN logical signal is changed into physical level, be used to receive the control signal that car body controller transmits, send described control signal to master control module 23 then, and when needed the status signal of the ECU parts of outside rear-view mirror is fed back to car body controller.Constant voltage power suspply 22 links to each other with master control module 23, is used to the power supply of outside rear-view mirror LIN bus module control setup; It can open or close by the ON/OFF pin, and cooperates the sleep that realizes this outside rear-view mirror LIN bus module control setup with LIN bus transceiver 21 and wake up.Master control module 23 links to each other with the mouth of LIN bus transceiver 21, control signal according to 21 transmission of LIN bus transceiver, send the corresponding driving signal to power driver module 24, control by the ECU parts in 24 pairs of outside rear-view mirrors of power driver module.The input end of power driver module 24 links to each other with master control module 23, and mouth links to each other with the ECU parts, according to the corresponding ECU parts of drive of master control module transmission.In a kind of embodiment of the present utility model, the master control module adopts performance-oriented micro controller system.The ECU parts comprise folding motor 251, deflector, heating plate 253 and electrochromism eyeglass 254, and deflector comprises steering motor 252.Power driver module 24 comprises the folding electric-motor drive unit 241, the steering motor driver element 242 that is used to drive steering motor that are used to drive folding motor 251, be used to the electrochromism eyeglass driver element 244 that drives the heating plate driver element 243 of heating plate and be used to drive the electrochromism eyeglass.The input end of folding electric-motor drive unit 241, steering motor driver element 242, heating plate driver element 243 and electrochromism eyeglass driver element 244 all links to each other with master control module 23, and mouth is corresponding continuous with folding motor 251, steering motor 252, heating plate 253 and electrochromism eyeglass 254 respectively.

Principle of work of the present utility model is: utilize bussing technique, the control signal of each ECU parts in the outside rear-view mirror is integrated into outside rear-view mirror LIN bus module control setup 2 places, and the master control module in the outside rear-view mirror LIN bus module control setup 2 is finished the task of swap data between each ECU parts and the car door control LIN network.The master control module is carried out action according to the instruction control ECU parts that obtain from car door control LIN network, thereby realizes the control to each ECU parts in the outside rear-view mirror.Simultaneously, master control module when needed feeds back to car door control LIN network with the residing status information of its control ECU parts, and passes to car body controller, and car body controller is made further response to this status information again.

Fig. 3 is the structural representation behind the utility model connection cable.Node permanent seat 1 is closed and is connected to outside rear-view mirror LIN bus module control setup 2 of the present utility model on the outside rear-view mirror, outside rear-view mirror LIN bus module control setup 2 is connecting an end of wire harness 4, wire harness 5, wire harness 6, and the other end of wire harness 4, wire harness 5, wire harness 6 is respectively equipped with connector 7, connector 8 and connector 9.Wherein, connector 7, connector 8 and wire harness interface 3 are being connected outside rear-view mirror in-to-in ECU parts, and connector 9 connects car door control LIN network.Deflector in the outside rear-view mirror, heating plate, folding motor, four ECU parts of electrochromism eyeglass have 14 wire harness and are connected on the outside rear-view mirror LIN bus module control setup 2, and outside rear-view mirror LIN bus module control setup 2 only needs 3 wire harness to finish with being connected of car door control LIN network, has significantly reduced the usage quantity of cable.

Claims

1. outside rear-view mirror LIN bus module control setup, described outside rear-view mirror comprises several ECU parts, it is characterized in that, described control setup comprises LIN bus transceiver, master control module, power driver module and constant voltage power suspply, wherein:

The LIN bus transceiver, input end links to each other with outside LIN bus, be used to receive the control signal that transmits from outside LIN bus, then described control signal sent to described master control module, and the status signal of the ECU parts of outside rear-view mirror is sent to outside LIN bus;

The master control module links to each other with the mouth of described LIN bus transceiver, and the control signal according to the LIN bus transceiver transmits sends the corresponding driving signal to described power driver module;

Power driver module, input end links to each other with described master control module, and mouth links to each other with described ECU parts, according to the corresponding ECU parts of drive of master control module transmission;

Constant voltage power suspply links to each other with described master control module, is used to described outside rear-view mirror LIN bus module control setup power supply.

2. outside rear-view mirror LIN bus module control setup as claimed in claim 1 is characterized in that described ECU parts comprise folding motor, deflector, heating plate and electrochromism eyeglass, and described deflector comprises steering motor; Described power driver module comprises the folding electric-motor drive unit, the steering motor driver element that is used to drive described steering motor that are used to drive described folding motor, be used to the electrochromism eyeglass driver element that drives the heating plate driver element of described heating plate and be used to drive described electrochromism eyeglass; The input end of described folding electric-motor drive unit, steering motor driver element, heating plate driver element and electrochromism eyeglass driver element all links to each other with described master control module, and mouth is corresponding with folding motor, steering motor, heating plate and electrochromism eyeglass respectively to link to each other.

3. outside rear-view mirror LIN bus module control setup as claimed in claim 1 is characterized in that described master control module is a micro controller system.