JPS5927297Y2 - Safety equipment for cars with automatic transmissions - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety device for an automobile with an automatic transmission that prevents the automobile from running dangerously when the driver leaves the automobile.

In conventional automobiles with automatic transmissions, when the driver leaves the automobile, there is a risk that a child from the passenger seat or rear seat may tamper with the shift lever, causing the automobile to start moving away.

An object of the present invention is to provide a safety device for an automobile equipped with an automatic transmission that can effectively prevent such dangerous starts caused by children's mischief.

Next, embodiments of the present invention will be described with reference to the drawings.

The seat switch 1 is arranged at the bottom of the driver's seat 2, and is closed by the load applied when the driver sits on the driver's seat 2.

The range switch 3 detects the range of the shift lever 4 of the automatic transmission, and is closed when the shift lever 4 is in the neutral N range or the parking range.

The seat switch 1 and the range switch 3 are connected in parallel to each other and connected to a coil 6 of a relay 5.

A key switch 10 provided in the driver's seat has a base terminal 12 connected to a DC power source 11, a starting ST terminal 13 connected to a starting morph (not shown), and an ignition terminal connected to a power distributor 14. IG terminal 15, accessory-AC terminal 16 connected to radio etc., and open OF
F terminal 17, and a fan-shaped conductor 18 interlocked with a key controls the connection between base terminal 12 and terminals 13, 15, 16, and 17.

The IG terminal 15 is connected to the coil 6 of the relay 5 and the contact 20, and the contact 20 is further connected to the power distributor 140 and the ignition coil 21.
connected to.

When the vehicle is in operation, the IG terminal 15 is connected to the DC power source 11 via the fan-shaped conductor 118.

When the driver is resting on the driver's seat 2, a predetermined load is applied to the driver's seat 2 and the seat switch 1 is closed.

An energizing current therefore flows through the coil 6 of the relay 5 and the contacts 20 are closed.

In this way, ignition current is supplied to the ignition coil 21, the power distributor 14 operates normally, and the engine is energized and continues to rotate.

On the other hand, when the driver leaves the driver's seat 2, the load on the driver's seat 2 decreases and the seat switch 1 opens.

At this time, if the shift lever 4 is in the N range or P range, an energizing current flows to the coil 6 via the range position switch 3, so the contact 20 is closed and the engine continues to rotate. There is.

However, if the shift lever 4 is moved to a position other than the N range or P range, such as drive D range or rear R range, due to mischief by a child or the like from the passenger seat or the rear seat, the range switch 3 opens and the relay 5 The coil 6 is deenergized and the contacts 20 are opened.

Therefore, no ignition current is supplied to the ignition coil 21,
The engine is deenergized and stopped.

In this way, even if the shift lever 4 is in a driving range such as the D range, a dangerous start-up of the vehicle is prevented.

In the embodiment, the ignition current of the ignition coil 21 is used to energize and de-energize the engine, but in addition, for example, in a fuel-injected internal combustion engine, the ignition current of the fuel pump is stopped and the electromagnetic injection valve is injected. It is also possible to utilize pulse interruption, etc., and these are clearly included within the scope of the present invention.

It is clear that it falls within the scope of the proposal.

As described above, according to the present invention, even when the shift lever 4 is moved to the D range or the like while the driver is away from the driver's seat 2, the internal combustion engine is deenergized by stopping the supply of ignition current, etc. , dangerous delivery of the vehicle is prevented.

[Brief explanation of drawings]

The drawing is a schematic electrical circuit diagram of an embodiment of the present invention. 1... Seat switch, 2... Driver seat, 3...
Range switch, 4...Shift lever, 15...Relay, 21...Ignition coil.

Claims (1)

[Scope of utility model registration request] a first opening/closing means for detecting a predetermined load on the driver's seat;
A second opening/closing means is connected in parallel to the opening/closing means for detecting the parking range and neutral range of the shift lever of the automatic transmission; A safety device for an automobile with an automatic transmission, characterized by comprising a control means for controlling the transmission.