METHOD FOR HEAT MANAGEMENT, IN PARTICULAR FOR A MOTOR VEHICLE, AND ASSOCIATED HEAT MANAGEMENT STRATEGY AND CONTROL UNIT

摘要

The invention concerns a heat management method for an electric heating device comprising at least one subassembly of resistive elements configured to be electrically supplied and a support for a circuit supplying power to the resistive elements, wherein the power supply of the resistive elements is controlled according to a power setpoint (P_(sub)system_target_0) or temperature (T_(sub)system_target_0) or electrical current amplitude (i_(sub)system_target_0) or resistance (R_(sub)system_target_0), or even a duty ratio of the control signal (PWM_(sub)system_target_0). According to the invention, the method comprises the following steps: recording the temperature (T_PCB) of the support of the circuit supplying power to the resistive elements, comparing the recorded temperature (T_PCB) with at least one predefined temperature threshold (T1), and if the recorded temperature (T_PCB) is greater than or equal to the at least one predefined temperature threshold (T1), generating a command to reduce the setpoint by a predetermined step. The invention also concerns a corresponding heat management strategy and control unit.