Automatic fan control system used for engine exhaust cold and hot impact

The invention discloses an automatic fan control system used for engine exhaust cold and hot impact. The automatic fan control system comprises a control module, a control circuit and three cooling fans, the control module is connected with the three cooling fans through the control circuit, and the control module is connected with an exhaust temperature sensor of an engine. The automatic fan control system used for engine exhaust cold and hot impact effectively solves the problem of exhaust manifold cold and hot impact endurance test capability, reduces test development cost, improves development efficiency, effectively guarantees laboratory high-voltage power utilization safety, and prevents high-voltage electric shock accidents of testers. 本发明公开了一种用于发动机排气冷热冲击风机自动控制系统，包括控制模块、控制电路和3个冷却风机，控制模块通过控制电路与3个冷却风机连接，控制模块与发动机的排气温度传感器连接。有效解决排气歧管冷热冲击耐久试验能力，降低试验开发成本，提升开发效率，有效保证了试验室高压用电安全，防止试验人员高压触电事故发生。