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Method for controlling system for motor vehicle

A technology for motor vehicles and actuators, applied in control systems, refrigerators, vehicle components, etc., to solve problems such as movable components being forced to abut

Pending Publication Date: 2020-10-23
VALEO SYST THERMIQUES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] To this end, a so-called "self-calibration" operation can be performed on the actuator, that is to say, the actuator will receive movement commands to place the movable member in the end position, but, as in the previous case, This can cause the movable member to be forced against the end stop

Method used

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  • Method for controlling system for motor vehicle

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Embodiment Construction

[0055] figure 1 Shown is a highly schematic diagram of a system 1 for a motor vehicle comprising at least:

[0056] Actuator 3,

[0057]a volatile RAM memory capable of storing at least one item of information, for example relating to the position of the actuator 3; this information is usually the value of the position of the actuator 3;

[0058] A long-term EPROM memory capable of storing at least one item of information, for example relating to the position of the actuator 3 ; this information is usually the value of the position of the actuator 3 .

[0059] The system 1 may also comprise a control module 5 connected firstly to a computer, such as an electronic control unit of the vehicle (not shown), and secondly to the actuator 3 . The link between the control unit 5 and the actuators or with the computer is formed by means of a communication bus BUS such as a LIN bus or a CAN bus.

[0060] In an embodiment not shown, the actuator 3 may also comprise a control unit 5; i...

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PUM

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Abstract

The invention concerns a method for controlling a system (1) for a motor vehicle, the system comprising at least: an actuator, a volatile memory (RAM) in which at least one item of position information of the actuator (IPRAM) is stored, a long-term memory (EPROM) in which the following are stored: at least one item of position information (IPROM) of the actuator, o an item of information relatingto the powering down of the actuator (IHT), the item of information assuming a first value (v1) when the system has been powered down in a controlled manner and assuming a second value (v2) when thesystem has suffered a fault causing the current value of the position of the actuator stored in the volatile memory (RAM) to be deleted, in particular when the system has stopped being powered electrically as the result of an error, or communication between the system and a computer has been cut off as the result of an error.

Description

technical field [0001] The invention relates to the field of actuators for motor vehicles, and more particularly to the control of a system comprising at least one actuator. Background technique [0002] In particular, in the automotive field, movable elements have to be moved to various positions in order to operate one or more systems in a specific mode of operation. [0003] These movable elements are typically moved by one or more actuators. The one or more actuators are typically electric and enable the conversion of electrical energy into mechanical work, such as rotational and / or translational motion. [0004] More particularly, the movable element may be a flap arranged in a heating, ventilation and / or air conditioning (also called HVAC) device. [0005] It should be noted that a heating, ventilation and / or air conditioning device for a motor vehicle is a module usually arranged under the dashboard of the vehicle. [0006] The heating, ventilation and / or air condi...

Claims

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Application Information

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IPC IPC(8): B60R16/023G05D7/06F16K37/00F25B41/06H02P8/36
CPCH02P1/16H02P8/30B60R16/0232B60H1/00028B60H1/00485B60H1/00835B60H2001/00178B60H2001/00214B60R16/0231
Inventor M.珀托T.古内特J-M.刘W.努瓦尼亚
Owner VALEO SYST THERMIQUES
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