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Method and unit for controlling electrical devices of an automotive vehicle

A technology for electrical equipment, motor vehicles, applied in the direction of temperature control using digital devices, vehicle components, transportation and packaging, etc., to achieve the effect of improving efficiency

Active Publication Date: 2019-04-16
CONTINENTAL AUTOMOTIVE FRANCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, it has been found that the temperature of the operating interface may often exceed this maximum operating temperature threshold, especially when the ambient temperature is high and when the vehicle's electrical equipment is used

Method used

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  • Method and unit for controlling electrical devices of an automotive vehicle
  • Method and unit for controlling electrical devices of an automotive vehicle
  • Method and unit for controlling electrical devices of an automotive vehicle

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Experimental program
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Embodiment Construction

[0034] The device according to the present invention is intended to be installed in a motor vehicle so that certain electrical equipment of the vehicle, especially electrical equipment that performs safety functions, operate at a higher temperature.

[0035] As an example, these devices may be the lights of the vehicle (brake lights, turn indicators, fog lights, etc.), front and rear wipers, or mechanisms for unlocking vehicle doors.

[0036] The term "motor vehicle" should be understood to mean a road vehicle (eg, car, small truck, truck, etc.) driven by at least one internal combustion engine or at least one electric motor or at least one gas turbine.

[0037] reference figure 1 The vehicle 1 includes a plurality of electrical equipment 5 and a device 10 that enables the electrical equipment 5 to be manipulated.

[0038] The device 10 includes a microcontroller 110, a plurality of manipulation interfaces 120, and a plurality of associated output connectors 130.

[0039] The microcontr...

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PUM

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Abstract

The subject of the present invention is a method for controlling an electrical device of an automotive vehicle comprising a unit for controlling said device including a microcontroller, which is configured to generate and electrical control signal for controlling the device having a duty cycle (gamma), and a control interface characterized by a maximum operating temperature threshold (TSF) beyondwhich the control interface is inoperative. The method comprises a step (E1A) of determining the internal temperature (T) of the control interface, a step of comparing (E3A) the determined internal temperature (T) with a first predetermined warning threshold (Tsi), a step (E4A) of decreasing the duty cycle (y) of the electrical signal when the first warning threshold (Tsi) has been exceeded, so asto limit the power of the electrical signal and thus maintain the internal temperature (T) of the control interface below its maximum operating temperature threshold (TSF).

Description

Technical field [0001] The present invention relates to the field of motor vehicles, and more specifically to methods and devices for operating multiple electrical devices of a motor vehicle. Background technique [0002] As we all know, a motor vehicle includes a number of electrical devices that are controlled by a device commonly called a body control module (BCM). [0003] This device makes it possible, for example, to activate the control of vehicle lights (brake lights, turn signals, fog lights, etc.), the control of front and rear wipers, or the control of unlocking the doors. [0004] To this end, the device includes a plurality of connectors each connected to a device, and a microcontroller that enables each device to be manipulated via a dedicated manipulation interface, which is usually called a "driver", which Connect to the associated connector. [0005] This manipulation interface takes the form of an electronic circuit, which enables current to flow to the device accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/19
CPCG05D23/1917B60R16/03
Inventor A.卢纳斯J-C.普鲁沃耶尔C.普拉代莱斯
Owner CONTINENTAL AUTOMOTIVE FRANCE