Cold start device and method for keyless system
A keyless, cold-start technology used in transportation and packaging, electrical or fluid lines, vehicle components, etc., to solve problems such as inability to maintain sufficient CRANK time
Active Publication Date: 2019-12-13
GUANGZHOU AUTOMOBILE GROUP CO LTD
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- Abstract
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- Claims
- Application Information
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Problems solved by technology
[0004] Based on this, it is necessary to provide a keyless system cold start device and method for the problem that the traditional technology cannot maintain enough CRANK time
Method used
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Embodiment 1
[0041] In order to solve the problem that the traditional technology cannot maintain enough CRANK time, the present invention provides a keyless system cold start device embodiment 1, figure 1 It is a structural schematic diagram of Embodiment 1 of the keyless system cold start device of the present invention; figure 1 As shown, it includes the voltage stabilizing capacitor connected between the keyless system and the car battery, and the voltage stabilizing circuit connected to the power supply end of the engine management unit and the power supply end of the transmission unit in the vehicle power circuit IG1;
[0042] When the keyless system is within the reset voltage range at the moment of starting, based on the power-on state maintained by the voltage stabilizing capacitor, the ignition signal is continuously output until the received engine speed output by the engine management unit is greater than the preset speed;
[0043] When the voltage of the engine management unit...
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The invention relates to a cold starting device and method for a keyless system. The cold starting device for the keyless system includes a voltage-stabilizing capacitor connected between the keylesssystem and an automobile storage battery and a voltage-stabilizing circuit connected with a power supply end of an engine management unit and a power supply end of a transmission unit in a whole vehicle power supply loop IG1; the keyless system continuously outputs ignition signals based on the powered-on state kept by the voltage-stabilizing capacitor when the instantaneous starting voltage is within a reset voltage range; when the instantaneous starting voltage is within the reset voltage range, the engine management unit and the transmission unit effectively keep pulled in based on the working voltage kept by the voltage-stabilizing circuit and the default valid pull-in of respective relays and are disconnected till the received rotational speed, output by the engine management unit, ofan engine is greater than a preset rotational speed. By means of the embodiment, it is ensured that the voltage is sufficient in the starting process, the ignition signals and the relays maintain sufficient time, sufficient time is provided for a starter motor to conduct traction to drive the engine to be started, and cold starting is successful.
Description
technical field [0001] The invention relates to the technical field of automobile electronic control, in particular to a cold start device and method for a keyless system. Background technique [0002] With the development of automobile technology, there are more and more one-key start configurations. The difference between one-button start and traditional ignition lock is that one-button start relies on ECU (Electronic Control Unit, electronic control unit) to judge the status of brake, gear and key to output ignition signal, EMS (Engine Management System, engine management unit) and TCU (Transmission Control Unit, automatic transmission control unit) determines the position of the sensor and pulls in the relay. The traditional ignition lock is kept in the CRANK (ignition signal) position by inserting the gear plate key. [0003] In the process of implementation, the inventor found that there are at least the following problems in the traditional technology: when the temp...
Claims
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IPC IPC(8): B60R16/03
CPCB60R16/03
Inventor 杨土超赖瑞福
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD