Vehicle speed signal simulation device and vehicle
A technology of signal simulation and vehicle speed, applied in the direction of measuring devices, vehicle testing, testing electrical devices in transportation, etc., can solve problems such as multiple safety hazards, and achieve the effect of preventing wrong connection of lines
Pending Publication Date: 2021-06-25
CNR LANZHOU LOCOMOTIVE
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Problems solved by technology
[0004] However, testing under vehicle dynamics needs to rely on the site and the driver's driving operation, and there are many potential safety hazards
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[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0056] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such ...
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The invention provides a vehicle speed signal simulation device and a vehicle. According to the vehicle speed signal simulation device provided by the embodiment of the invention, the power supply port of a timer is used for being connected with the power output port of a vehicle digital-analog box, the trigger port of the timer is connected with a first potentiometer, and an adjusting part is used for adjusting the resistance value of the resistor, connected into the trigger port, of the first potentiometer so as to change the resistance value of the divider resistor connected with the trigger port of the timer, so that the frequency of an output signal of an output port of the timer is changed under the driving of an input signal, and the output port of the timer is used for being connected with a speed channel of the vehicle so that the timer can input a square wave pulse signal to the speed channel. Therefore, the locomotive can be electrically overhauled when the locomotive is in a static state, and an analog signal is provided for a transition test of the locomotive, so that a bullet train test is not needed, and wrong circuit connection and safety accidents in the process that a driver starts the locomotive to carry out the test can be prevented.
Description
technical field [0001] The invention relates to the technical field of vehicle testing, in particular to a vehicle speed signal simulation device and a vehicle. Background technique [0002] With the rapid development of rail vehicle technology, fault diagnosis for vehicle operation is particularly important. [0003] At present, in the process of daily maintenance of vehicles, when the speed channel of the vehicle fails, the driver needs to run the vehicle volume to confirm the fault, that is, the vehicle needs to be in a dynamic state to diagnose the fault in the speed channel of the vehicle. [0004] However, testing under vehicle dynamics needs to depend on the site and the driver's driving operation, and there are many potential safety hazards. Contents of the invention [0005] Embodiments of the present invention provide a vehicle speed signal simulation device and a vehicle, so that the vehicle can simulate the vehicle speed signal of the vehicle in a static state...
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IPC IPC(8): G01M17/007G01R31/00
CPCG01M17/007G01R31/006
Inventor 段立恒邴建辉杨政国张兴东王彦驹张德鹏刘世荣梁慧丽张珩张世平
Owner CNR LANZHOU LOCOMOTIVE