CN2860940Y

CN2860940Y - Control circuit with memory function for automobile electric rearview mirror

Info

Publication number: CN2860940Y
Application number: CN 200520036506
Authority: CN
Inventors: 许晓冬
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2005-12-09
Filing date: 2005-12-09
Publication date: 2007-01-24
Anticipated expiration: 2015-12-09

Abstract

The utility model discloses an electric rearview mirror control circuit of the car with memory function. The control circuit includes main control CPU, motor driving module, key module, rearview mirror position information collection module, position status memory respectively connected with the main control CPU. The position information collection module can collect information for multiple working positions of the rearview mirrors, and the position status memory memorizes information for multiple working positions of the rearview mirrors, so that the rearview mirror can restore to the position before closing through starting the car or the user order, after reclaiming and closing, thus the utility model is humanized and intelligent setting for the electric rearview mirror when the car is used by many person.

Description

Vehicle electric rear-view mirror control circuit with storage memory function

[technical field]

The utility model relates to a kind of control circuit that is used for electromotion rearview mirror of car.

[background technology]

At present, along with the raising day by day of living standard, the customer is also more and more higher to the requirement of private car hommization intelligence configuration, emerges a large amount of vehicle electronics products on the market, as vehicle-mounted VCD, on-board air conditioner and driven rearview mirrors etc.Yet the control of numerous onboard systems mostly based on the instant control of chaufeur, so, makes the original driving variable that just needs many-side to control and regulate get complicated more and trouble.For example, the configuration of automobiles of some higher gears has closeable driven rearview mirrors, if one dispose can closed driven rearview mirrors automobile often have two people or more people to drive (driving jointly) as the man and wife of family, each steerman that uses can carry out angular adjustment to automobile rearview mirror according to the custom of oneself, when automobile is used the back or uses other people automobile by other people, all need to carry out such adjustment, very inconvenient.

[summary of the invention]

The purpose of this utility model is to propose a kind of vehicle electric rear-view mirror control circuit with storage memory function, to realize having the hommization Based Intelligent Control, simplifies driver's operation and regulates.

For achieving the above object, the utility model proposes a kind of vehicle electric rear-view mirror control circuit with storage memory function, comprise main control CPU, motor drive module, key-press module, described motor drive module, key-press module are connected with described main control CPU respectively; Also comprise position of rear view mirror information acquisition module, location status memory device, link to each other with described main control CPU respectively; Described location information acquisition module signal input part is connected with described motor drive module signal output part.

Described location information collection plate comprises potential device, gear, and the adjustable end of described gear mouth and described potential device is affixed; Described gear input end is used for the motor movement mechanism engagement with corresponding driven rearview mirrors; Described potential device links to each other with the AD port of described main control CPU.Described key-press module comprises left and right sides back mirror angle control key, back mirror closure/start button, memory function key, numerical key, is connected corresponding different controllable function respectively with described main control CPU.

Owing to adopted above scheme, the utility model is with driven rearview mirrors hommization, intellectuality, can store the control position information of many group back mirrors, be convenient to the back mirror angular adjustment that the many people of a car use, and when the back mirror folded closed, remember position of rear view mirror information at that time automatically, when automotive ignition or user when carrying out the corresponding operating of back mirror, back mirror opens up into position and the angle before closed automatically, greatly facilitates the operation of chaufeur.

[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.

[specific embodiment]

Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.

In view of the variation of in-vehicle electronic system, present embodiment is on can the basis of closed driven rearview mirrors, is made of location information harvester and information-storing device.

As Fig. 1, present embodiment comprises driven rearview mirrors main control CPU, driven rearview mirrors motor drive module, location information acquisition module, memory module, button, on keypad, enter storage operation by button S, this moment is again by any digital keys 1,2 ... just the position of two back mirrors about this moment and angle information can be passed to CPU after by the collection of four groups of location information harvesters, be stored in the corresponding storage space of memory device by CPU again; Press the Any Digit key again, CPU will read corresponding location information from memory device, and driven rearview mirrors is rotated, till the location information of four station acquisition plates collection is identical with the information that is read, i.e. and the relevant position of being stored of driven rearview mirrors rotation.When user's button C key, CPU will read the information of four groups of location information collection plates automatically at this moment and store in the memory device, then back mirror is turned to closure state; As user during again by button C or start a car (when ACC becomes 1 by 0), CPU will read the location information of being stored before the closure last time automatically and driven rearview mirrors be forwarded to the position of being stored.

As Fig. 2, P87C591 is the main control CPU with electromotion rearview mirror of car system of storage memory function, and it controls four groups of motor drive modules 7291, and two back mirrors can reach the fore-and-aft direction rotation up and down about making.Potential device RDC503013 fix with gear and sting mutually with cooresponding motor movement mechanism and, driven gear rotates when making the motor movement mechanism kinematic, changing the resistance value of potential device, thereby change the output voltage (2 pin of potential device RDC503013) of potential device, and send this magnitude of voltage to CPU.Memory device 24C04 can store and read information at any time by iic bus and CPU communication.Respectively control button on the KEY wire joint keypad, as left and right sides back mirror angle control key, back mirror closure/start button, memory function key, numerical key etc.ACC is an automobile ignition wire, when car engine, the ACC current potential is uprised by low, if this moment, back mirror was in closure state, CPU will read the closed preceding location information of storage automatically automatically, drive motor makes back mirror rotate to the storage location direction, till the present position information that is read is identical with the location information of being stored, even back mirror turns to the storage location.

Claims

1, a kind of vehicle electric rear-view mirror control circuit with storage memory function comprises main control CPU, motor drive module, key-press module, and described motor drive module, key-press module are connected with described main control CPU respectively; It is characterized in that: also comprise position of rear view mirror information acquisition module, location status memory device, link to each other with described main control CPU respectively; Described location information acquisition module signal input part is connected with described motor drive module signal output part.

2, vehicle electric rear-view mirror control circuit as claimed in claim 1 is characterized in that: described location information collection plate comprises potential device, gear, and the adjustable end of described gear mouth and described potential device is affixed; Described gear input end is used for the motor movement mechanism engagement with corresponding driven rearview mirrors; Described potential device links to each other with the AD port of described main control CPU.

3, vehicle electric rear-view mirror control circuit as claimed in claim 1 or 2, it is characterized in that: described key-press module comprises left and right sides back mirror angle control key, back mirror closure/start button, memory function key, numerical key, be connected corresponding different controllable function respectively with described main control CPU.