JPS63191273U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of a preferred embodiment of the idling continuation device for vehicles equipped with a turbo charger according to the present invention, Fig. 2 is an explanatory diagram of the operation of the device shown in Fig. 1, and Fig. 3 is a conventional turbo charger-equipped idling continuation device.・This is a schematic configuration diagram of an idling continuation device for a vehicle equipped with a charger. In the figure, 11 is the ignition switch, 12
is an ignition load, 20 is an idling continuation device according to the present invention as a whole, 21 and 37 are one-shot circuits, 22 is a NAND gate, 23 is a flip-flop circuit, 24 is a relay drive circuit,
25 is a normally open relay contact, 27 is a boost pressure sensor, 30 is a sample/hold circuit, 31 is a discharge circuit, 32 and 33 are analog switches, and 35 is a display device drive circuit which also serves as a threshold circuit.

Claims (1)

[Claims for Utility Model Registration] When the ignition switch is opened, it is detected and switched, and the power supply line is kept closed through a path different from the ignition switch, and the engine is kept in an idling state for the time being. a sample and hold circuit that samples the boost pressure associated with the turbo charge at the moment or immediately before the ignition switch is opened; and discharges the sampled and held value at a predetermined time constant. a discharge circuit; when the voltage value decreasing due to the discharge reaches a predetermined value, it acts on the line closing circuit to open a path other than the ignition switch and stop the engine; An idling continuation device for a turbo charger equipped person, comprising: a circuit;