MOTOR VEHICLE COMPRISING AUTONOMOUS TESTING AND CONTROL MEANS FOR AN ELECTRICAL CIRCUIT BREAKER, METHOD AND PROGRAM BASED ON SUCH A VEHICLE

Abstract

The invention relates to a motor vehicle comprising an electrical circuit which comprises:- a battery (B);- a printed circuit board (ECB);- a supervisor module (VSM) controlling the printed circuit board (ECB);- a circuit breaker comprising a relay;- an electrical test means for carrying out an electrical test of the relay (TK1);- an open relay warning means (T1, T0) for signaling an open relay fault based on the electrical test of the relay (TK1);characterized in that in case of power supply to the electrical circuit, if the relay is open and the warning means does not signal an open relay fault (T0), then the printed circuit board (ECB) closes the relay (CECB) within a predetermined time (D). The invention also relates to a method and a program based on such a vehicle. Figure 1

Claims

- an electrical test step for performing an electrical test of the relay (T ki); - an open relay alert step for signaling an open relay fault based on the electrical test of the relay (TKi); characterized in that in the event of power supply to the electrical circuit, if the relay is open and the alert step does not signal an open relay fault (T0), then the printed circuit board (ECB) closes the relay (CECb) within a predetermined time (D); and if the alert step signals that there is an open relay fault (Tl), then the printed circuit board (ECB) opens the relay or keeps it open unless a closing command (CVsm) is received from the supervisor module (VSM).

7. Control method according to claim 6, characterized in that in the electrical test step, a short-circuit fault (SC) is tested; and / or a power supply fault (Alim) of the printed circuit board (ECB); and / or an earthing fault (Gnd) of the printed circuit board (ECB), and in the event of one or other fault (SC, Alim, Gnd), the alert means signals an open relay fault (Tl).

8. Control method according to any one of claims 6 to 7, characterized in that the predetermined delay (D) lasts between 0 and 1000 ms, preferably between 0 and 500 ms, more preferably 400 ms.

9. A control method according to any one of claims 6 to 8, further comprising a step of recording the open relay faults in a local memory (M) and / or in a remote memory.

10. A computer program comprising program code instructions for carrying out the steps of the control method according to any one of claims 6 to 9, when said program is running on a computer. [Fig. 1] [Fig. 2]

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