Device and method for automatically judging instrument speed signal source
An automatic judgment and instrumentation technology, applied in vehicle parts, transportation and packaging, circuits or fluid pipelines, etc., can solve problems such as difficulty in after-sales maintenance, wrong installation of instruments, etc., to facilitate after-sales maintenance, reduce instrument parts, and reduce instruments. Effects of component states
Inactive Publication Date: 2015-07-01
力帆科技(集团)股份有限公司
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Problems solved by technology
[0003] If you do not know how the vehicle detects the speed signal, it is not only easy to install the wrong instrument, but also brings some difficulties to after-sales maintenance.
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[0019] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as a limitation of the present invention.
[0020] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or two The internal communication between the elements may be directly connected or indirectly connected through an intermediate medium, and those of ordinary skill in the art can understand the specific...
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The invention provides a device and a method for automatically judging an instrument speed signal source. The device comprises an instrument controller, wherein the instrument controller comprises an ignition switch signal input end and an anti-locked braking system (ABS) warning light signal input end, wherein the ignition switch signal input end is connected with one end of an ignition switch; the other end of the ignition switch is connected with a power supply; the ABS warning light signal input end is connected with one end of an ABS warning light; and the other end of the ABS warning light is connected with the power supply. According to the device for automatically judging the instrument speed signal source, the vehicle speed signal source can be identified, the parts of the instrument are reduced, and the condition that the instrument is wrongly arranged on the vehicle is avoided. According to the method for automatically judging the instrument speed signal source, the vehicle speed signal source can be automatically identified by the instrument controller, the part state of the instrument is reduced, and the condition that the instrument is wrongly arranged on the vehicle is avoided; and meanwhile, the system gives different vehicle speed indications according to the vehicle speed signal source after the ignition switch is switched on, and the after-sales repair is convenient.
Description
technical field [0001] The invention relates to a vehicle information prompting system, in particular to a device for automatically judging the source of a vehicle speed signal of an instrument and a judging method thereof. Background technique [0002] When the vehicle is running, the vehicle speed signal is input to the instrument controller, which is then processed by the instrument controller and output to other controllers that require vehicle speed signals, such as Electronic Control Unit (Electronic Control Unit), body control module, etc. Due to different vehicle configurations, the devices for detecting vehicle speed signals are also different. For example, for the same type of vehicle, if an ABS (Anti-locked Braking System, anti-lock braking system) control system is installed, the wheel speed output by the ABS controller is used. The signal is input to the vehicle instrument controller as a vehicle speed signal; if the ABS control system is not equipped or the ABS...
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IPC IPC(8): B60K35/00B60R16/02
Inventor 罗永国
Owner 力帆科技(集团)股份有限公司