摘要:
A glow plug driving control apparatus. The glow plug driving control apparatus includes a glow switch 2 and a glow plug 1 which are connected in series between a power supply and ground, and an electrical controlling unit 101 which controls opening and closing of the glow switch 2, and that can perform energization driving of the glow plug 1. The glow plug driving apparatus also includes an energization path switching switch 5 that connects in series a stability coil 3 in a serial connection path of the glow switch 2 and the glow plug 1 at the time of an energization start of the glow plug 1, and after the energization start, causes both the glow switch 2 and the glow plug 1 to return to a serial connection state between the power supply and the ground.
摘要:
Disclosed is a glow plug diagnosis method of being able to diagnose the aging or fault of a glow plug without being affected by cooling associated with air intake/exhaust or fuel injection, the method including: a step (S102) of energizing a glow plug 1 in a predetermined manner when a key switch 11 of a vehicle is turned on; and a step (S106) of measuring the resistance value of the glow plug 1 when the energization of the glow plug 1 is started, and the resistance value of the glow plug when the energization of the glow plug 1 is started and then a change in the resistance value is saturated, and of calculating a change in the resistance value over time as a resistance value gradient, in which it is determined that the glow plug 1 is normal when the resistance value gradient exceeds a predetermined first gradient reference value a, and it is determined that the glow plug 1 is faulty, and a warning lamp or the like is lighted when the resistance value gradient is less than a predetermined second gradient reference value b (S112 and S118).
摘要:
A glow plug driving control apparatus. The glow plug driving control apparatus includes a glow switch 2 and a glow plug 1 which are connected in series between a power supply and ground, and an electrical controlling unit 101 which controls opening and closing of the glow switch 2, and that can perform energization driving of the glow plug 1. The glow plug driving apparatus also includes an energization path switching switch 5 that connects in series a stability coil 3 in a serial connection path of the glow switch 2 and the glow plug 1 at the time of an energization start of the glow plug 1, and after the energization start, causes both the glow switch 2 and the glow plug 1 to return to a serial connection state between the power supply and the ground.
摘要:
Disclosed is a glow plug diagnosis method of being able to diagnose the aging or fault of a glow plug without being affected by cooling associated with air intake/exhaust or fuel injection, the method including: a step (S102) of energizing a glow plug 1 in a predetermined manner when a key switch 11 of a vehicle is turned on; and a step (S106) of measuring the resistance value of the glow plug 1 when the energization of the glow plug 1 is started, and the resistance value of the glow plug when the energization of the glow plug 1 is started and then a change in the resistance value is saturated, and of calculating a change in the resistance value over time as a resistance value gradient, in which it is determined that the glow plug 1 is normal when the resistance value gradient exceeds a predetermined first gradient reference value a, and it is determined that the glow plug 1 is faulty, and a warning lamp or the like is lighted when the resistance value gradient is less than a predetermined second gradient reference value b (S112 and S118).