A vehicle-mounted equipment heating control circuit comprises a temperature detection unit, a control unit, a first switch unit, a power supply unit and a heating unit, and the temperature detection unit is used for detecting internal temperature information of equipment and outputting voltage information; the first switch unit is connected with the power supply unit and the heating unit; the control unit is connected with the temperature detection unit and the first switch unit so as to compare the voltage information with a preset first hysteresis interval and control the state of the first switch unit according to a comparison result; the circuit further comprises a temperature hysteresis control unit and a second switch unit. The second switch unit is connected with the first switch unit, and the temperature hysteresis control unit is used for detecting the surface temperature of the equipment to obtain voltage information, is connected with the second switch unit to compare the voltage information with a preset second hysteresis interval, and controls the state of the second switch unit according to a comparison result. The whole heating control is stable, and the safety performance is high.
一种车载设备加热控制电路,包括温度检测单元、控制单元、第一开关单元、供电单元和加热单元,该温度检测单元用于检测设备内部温度信息并输出电压信息;该第一开关单元与供电单元和加热单元连接;该控制单元与温度检测单元和第一开关单元相连以将电压信息与预设的第一迟滞区间进行对比,根据对比结果控制第一开关单元状态;还包括温度迟滞控制单元和第二开关单元;第二开关单元与第一开关单元相连,该温度迟滞控制单元用于检测设备表面温度得到电压信息,其与第二开关单元相连以将电压信息与预设的第二迟滞区间进行对比,根据对比结果控制第二开关单元状态。本发明使得整个加热控制稳定且安全性能高。
Vehicle-mounted equipment heating control circuit
一种车载设备加热控制电路
2021-05-28
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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
VEHICLE-MOUNTED EQUIPMENT CONTROL DEVICE AND VEHICLE-MOUNTED EQUIPMENT CONTROL METHOD
European Patent Office | 2020
|Vehicle-mounted equipment control device and vehicle-mounted equipment control method
European Patent Office | 2021
|European Patent Office | 2022
|VEHICLE-MOUNTED EQUIPMENT CONTROL DEVICE AND VEHICLE-MOUNTED EQUIPMENT CONTROL METHOD
European Patent Office | 2019
|Detection circuit, control method thereof and vehicle-mounted terminal equipment
European Patent Office | 2024
|