The invention discloses an error early warning system for actual vehicle speed and vehicle speed displayed by a combination instrument. The system comprises a detection unit, a storage unit, a calculation unit and a control unit. The detection unit comprises a displacement signal transmitter and a time signal transmitter. The storage unit is used for storing sending signal data information of the displacement signal transmitter and sending signal data information of the monitoring time signal transmitter. The calculation unit is used for calculating the ratio of the two-point interval displacement difference of the displacement signal transmitter to the two-point interval time difference corresponding to the time signal transmitter. An execution unit comprises an alarm device, and the alarm device is divided into a first audible and visual alarm and a second audible and visual alarm. According to the invention, the problems that the loading test increases the workload and causes low efficiency because whether the actual vehicle speed and the display vehicle speed meet the design specification or not is often required to be verified during the current instrument development are solved.
本发明公开了一种实际车速与组合仪表显示车速的误差预警系统,包括检测单元、存储单元、计算单元和控制单元,所述检测单元包括位移信号发射器和时间信号发射器;存储单元,所述存储单元包括用于存储位移信号发射器的发送信号数据信息以及用于监控时间信号发射器的发送信号数据信息;计算单元,所述计算单元用于计算位移信号发射器两点间隔位移差与时间信号发射器对应的两点间隔时间差的比值;执行单元,所述执行单元包括报警装置,所述报警装置分为第一声光报警器和第二声光报警器。本发明解决了目前仪表开发时,往往需要装车验证实际车速与显示车速是否满足设计规范,装车测试增加工作量,造成效率低下的问题。
Error early warning system and early warning method for actual vehicle speed and vehicle speed displayed by combination instrument
一种实际车速与组合仪表显示车速的误差预警系统及预警方法
2022-01-07
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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