JPH04505900A - System for controlling multiple vehicle electrical devices - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] System technology field that controls multiple vehicle electrical devices The present invention is directed to a system for controlling a plurality of vehicle electrical devices, and particularly to a system for controlling a plurality of vehicle electrical devices. electrical equipment such as window regulators, door lock fittings, external rear view mirrors, etc. - controls actuators and pushbutton controls for manual adjustment of these devices related to the system.

Background technology The wiring systems currently used to connect electrical devices such as those listed above include It includes multiple cables, each controlling a specific device. For such a system has many difficulties. This means that the installation of the cable car is complicated and requires a large number of electrical There are connection points, making it difficult to check for damage, and assembly to the vehicle is done during or during work. It is troublesome to test the wiring system after completion.

Disclosure of invention The object of the present invention is to avoid the above-mentioned difficulties, that is, to make it considerably easier to manufacture and Easy to assemble, trouble-free, easy to detect damage, and highly reliable. , and a system for controlling multiple vehicle electrical devices that has low manufacturing and assembly costs. is to provide.

Other objects and advantages of the system of the invention will be apparent from the following description.

According to the invention, a plurality of vehicle electrical devices having at least electrically actuated members are controlled. a system comprising at least a central process unit and a central process unit; in a system comprising at least a cable electrically connecting the a plurality of vehicles characterized in that the electrical device has a specific electronic control block; A system for controlling an electrical device is provided.

Brief description of the drawing Hereinafter, preferred embodiments of the present invention will be explained by way of specific examples with reference to the accompanying drawings. However, the present invention is not limited to these embodiments.

FIG. 1 is a top view schematically showing an automobile equipped with the control system of the present invention; FIG. 2 is a side view schematically showing the front door of the automobile shown in FIG. FIG. 3 is a side view schematically showing an electrical device attached to the door shown in FIG. 2. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION In Figure 1, the reference numeral 1 refers to the two front doors 2, 2' and the two rear doors. 3.3' (both doors shown open) It shows. Close to the dash panel 4, the center with the micropro sensor 6 A process unit 5 is housed therein. Central process unit 5 to cable 7 ．． 7', 8.8' extend, and each cable has a first positive electrical supply conductor 10 and a second positive electrical supply conductor 10. 2 and attached to the front doors 2 and 2', respectively. and cables 8 and 8' are attached to rear doors 3 and 3', respectively. ing.

As shown in Figure 2, regarding the cable 7 attached to the door 2, each cable The branch of the bull electrically controls the manual push button control device W14 and the external rearview mirror 16. 15, door lock 17 and window adjustment device 18. ing.

Each of these devices consists of three components, as indicated schematically by the reference numeral 19 in FIG. A connection block 20 with a connector is provided. These connectors are cable A similar terminal block connecting the three conductors 10, 11 and 12 of the circuit 7 connected to the branch. The block 20 has a connector 19 with a printed circuit 22. a first integrated circuit 23 that supplies electricity to a member 24 (e.g. a DC motor); A second integrated circuit 25 is formed which processes information signals regarding the actuation of the actuating member 24. ing. These integrated circuits 23 and 25 include specific logic circuits or microphones. It can be equipped with a microprocessor, solid-state switch, etc., and can also be Voltage protection circuits, control and diagnostic circuits, etc. may also be formed.

In a manual pushbutton control device 14 without electrical power actuation, the first integrated circuit 2 3 can be omitted. On the other hand, a device 15 for electrically controlling the external rearview mirror 16 Next, we will explain the positioning of the mirror reflective surface, the positioning of the mirror body relative to the door, and the reflection 2 or more for controlling the various electrically actuated members governing the power supply to the surface heating member. An actuating member will be provided.

In the case of cables 8 and 8' of doors 3 and 3', the external rearview mirror 16 is Obviously, the connection to the device 15 for controlling the , similar to the device 19 shown in FIG. Branches 26 and 26' for locking and unlocking the fuel filling box lid 31. are connected to devices 28 and 28', respectively.

In accordance with the control system of the present invention, measurements can be made, for example, by a manual pushbutton controller The various signals determined are sent to the central processing unit 5 via the wiring 11.

Thus, door 2.2'.

3.3' and a device W for decoding the input signal via the integrated circuits 25 and 23; 2B, 28' are controlled and for actual operation, i.e. in the case of device 18, In the case of device 17, operate the door lock member, and in the case of device 15, The power supply is controlled to position and/or heat the mirror. central pro Data is continuously and asynchronously transmitted between the processing unit 5 and various devices, and pulse The information unit is encoded by modulating the duration of the signal. The amplitude of the pulse is wire 10 and is constantly equal to the potential difference of 12. The delay is typically about 1 to 10 bits per second. It is transmitted at low speed and does not interfere with the priority safe operation of process unit 5, and sometimes equal to or less than the minimum delay discernible to the human eye (approximately 75m5ec). A full device operating reaction time is obtained.

Industrial applicability The advantages obtained by the system of the invention will be clear from the foregoing description. 1st A specific logic block 27 connects the central processor using a single three-wire cable. The access unit 5 can be connected to various electrical devices mounted on the vehicle 1. Ru. The logic block 27 is applied to each device and connected to the wiring 11 according to a predetermined policy. transmitting and receiving signals from the device, processing information signals regarding the operation of the device, and IIJ controls the power supply for the operation of this device. Furthermore, controlling the device 14 The switch is dominated by low information signal currents rather than power circuit currents. subordinate This significantly reduces the number of cables, connection points and connected devices, and improves the connectivity system. Assembling is simplified and the reliability of the system is improved. In addition, each device Electronic logic blocks enable fault diagnosis, so drivers are immediately informed of abnormalities. It improves driving safety by letting the operator know the type of abnormality, and also informs the repairman of the type of abnormality, making it easier to repair. Reduce time. These facilitate both on- and off-line testing . Forming a monolithic integrated circuit containing logic circuits in each device allows specific integrated circuits to be and control the operation of each piece of equipment by simply changing the program of the central process unit. You can change the type.

Those skilled in the art will be able to modify or change the M aspect of the present invention without departing from the scope of the present invention. can be changed. For example, the number and location of the illustrated devices could be changed. (e.g. each door can be fitted with an electric locking and unlocking device), as well as a circuit (e.g. central processing using different numbers of cables) The system unit 5 can be connected to various devices. ) Submission of translation of written amendment (Article 184-8 of the Patent Law) September 7, 1991

Claims (1)

[Claims] 1. a plurality of electrical devices having at least electrically actuated members (24) mounted on the vehicle (1); It is a system that controls the devices (14, 15, 17, 18, 28, 28'; 19). Therefore, at least the central process unit (5) and the central process unit (5) ) electrically connected to the electrical device (14, 15, 17, 18, 28, 28'; 19). In a system comprising at least a connecting cable (7, 7', 8, 8'), The electric device (14, 15, 17, 18, 28, 28'; 19) A system for controlling a plurality of vehicle electrical devices characterized by having a block (27) Tem. 2. 2. The electronic block (27) according to claim 1, wherein the electronic block (27) comprises at least an integrated circuit. system. 3. the electronic block (27) actuates at least the electrically actuated member (24); a first integrated circuit (23) for supplying electrical power and at least one of said electrically actuating members (24); and a second integrated circuit (25) for processing information signals related to the operation. The system according to item 2 of the scope of demand. 4. Claim 2 or 3, wherein the electronic block (27) comprises a logic circuit. The system described in Section 3. 5. The electrical connection cable (7, 7', 8, 8') is a first conductor supplying electrical power. (10), a second conducting wire (11) for transmitting information signals and a third grounding wire (12) The system according to any one of claims 1 to 4, comprising: 6. the central processing unit (5) includes at least a microprocessor (6); , and the information signal is continuously and asynchronously transmitted by the second conductor (11). 6. The system according to claim 5. 7. One door (2, 2', 3, 3') of the vehicle (1) is equipped with at least the electrical device ( 14, 15, 17, 18) electrically connecting the cables (7, 7', 18). 8, 8') according to any one of claims 1 to 6. Mu. 8. The door (2, 2', 3, 3') electrical device is at least a window regulator. (18), equipped with a door locking device (17) and a manual control push button device (14) 8. The system according to claim 7. 9. Said electrical device of said door (2, 2') electrically connects the external rear view mirror (16). System according to claim 8, characterized in that it comprises a controlling device (15). 10. The device (15) electrically controls the external rear view mirror (16). Positioning of the reflective surface of the rear view mirror (16) and/or the exterior relative to the door A part for positioning the main body of the rear view mirror (16) and/or heating the reflective surface System according to claim 9, comprising an electrically actuated member (24) for the material. Mu. 11. The electrical connection cable (8') connects the central process unit (5) to the vehicle ( 1) a first device (2) for locking and unlocking the bag gauge compartment (30); 8) and the fuel filling box lid (31) of the vehicle (1). The system according to any one of claims 1 to 10. 12. The electronic control block (27) indicates and detects defects in the electrical device (19). Any one of claims 1 to 11 comprising means for diagnosing and/or diagnosing The system described. 13. At least an electrically actuated part according to any one of claims 1 to 12. a plurality of electrical devices (14, 15, 17, 18, 28, 28'; Vehicle (1) equipped with a system for controlling 19). 14. Controls a plurality of vehicle electrical devices substantially as herein described with reference to the accompanying drawings. control systems and vehicles on which the systems are installed.