JPS6056664B2 - Automobile brake warning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automobile brake warning system for preventing spontaneous runaway due to forgetting to operate the parking brake.

Conventional technology This type of brake warning device was developed in U.S. Pat.
As stated in Publication No. 4, etc., when the driver is in a difficult position with the parking brake inactive when parking, the light beam emitted from the phototube device is uninterrupted and the difficulty level detection switch becomes energized. , the relay contacts close and energize the buzzer, which generates an alarm and activates the parking brake.

A technique for notifying forgetfulness has been disclosed. However, when the vehicle is temporarily stopped on a gentle slope to take a rest indoors, the driver may forget to operate the parking brake and may not notice this. Problems to be Solved by the Invention The purpose of the present invention is to temporarily stop the vehicle before operating either the hood brake or the parking brake, in order to prevent the vehicle from spontaneously driving out of control due to forgetting to apply the brakes on such slopes. The object of the present invention is to provide a brake warning device that can give a warning to the driver.

Means for Solving the Problems In order to achieve this object, an automobile brake warning device according to the present invention includes: a tilt detection switch that closes when the automobile tilts; a stop detection switch that closes when the automobile stops;
A parking brake that closes when the parking brake is not activated and an alarm are connected in series with each other and connected to a power source.

If the driver forgets to apply both the hood brake and the parking brake when the vehicle is stopped on a slope, the hood brake switch, parking brake switch, slope detection switch, and stop detection switch are all closed.

As a result, an operating current is supplied from the power supply to the alarm, and an alarm is generated. Embodiments The present invention will be described with reference to illustrated embodiments.

FIG. 1 is a principle circuit diagram of an embodiment based on the present invention, and in FIG. 1, 1 is a DC power source such as a battery,
2 is a warning device such as a lamp or a buzzer, and 3 is a switch that is turned on when the car is tilted (hereinafter, the closed state of the switch is referred to as "on", and the unopened state is referred to as "off").

), 4 is a stop detection switch that is turned on when the car is stopped, 5 is a foot brake switch that is turned on when the foot brake is not activated, and 6 is a parking brake that is not activated. 7 is a clutch pedal switch that is turned on when the clutch pedal is released, that is, when it is not depressed by the foot, and these elements 1 to 7 are connected to each other. They are connected in series to form one closed loop. Therefore, if switches 3 to 7 are all on, that is, the vehicle is tilted, the vehicle is stopped, the foot brake and parking brake are both inactive, and the clutch pedal is not depressed. When the brakes are pressed, an operating current flows through the alarm device 2 to generate an alarm, thereby informing the driver that the driver has forgotten to apply the brakes. FIG. 2 shows the detailed configuration of each switch. The tilt detection switch 3 includes a pendulum 32 swingably suspended from the vehicle body 8 via a pin 31, vertical walls 81 and 82 of the vehicle body facing from both sides with the pendulum 32 in between, and the pendulum 32 and vertical wall 81
, 82, respectively, the electrical contacts 33, 34, 5
35, and when the vehicle body 8 is tilted, the electrical contact 33 contacts the electrical contact 34 or 35 and turns on.

In order to prevent the pendulum 32 from swinging due to vibrations while the car is running, a suitable damper (not shown) is provided so that only three static inclinations of the car body 8 are detected. . The stop detection switch 4 has electrical contacts 42 and 43 that come into contact depending on the position of the pointer of the speedometer 41 of the automobile,
When the pointer reaches the 0 position on the scale, that is, when the vehicle speed reaches 0 and the vehicle stops, the electrical contacts 42 and 43 come into contact with each other and turn on.

The foot brake switch 5 has electrical contacts 53 provided on a brake pedal 51 and a stationary portion 52 of the vehicle body.
, 54, and when the brake pedal 51 is released, that is, when the foot brake is in an inactive state, the electrical contacts 53 and 54 contact each other and turn on.

The parking brake switch 6 has electrical contacts 63 and 64 provided on a parking brake lever 61 and a stationary part 62 of the vehicle body, respectively, and when the parking brake lever 61 is in the lowered position, that is, the parking brake is not activated. Electrical contact 63 in the operating state
, 64 contact and turn on.

The clutch pedal switch 7 has electrical contacts 73 and 74 provided on a clutch pedal 71 and a stationary part 72 of the vehicle body, respectively, and when the clutch pedal 71 is released, the electrical contacts 73 and 74 are activated. It comes into contact and turns on.

When the vehicle is stopped, the clutch pedal 71 is normally released.
Like the stop detection switch 4, the clutch pedal switch 7 is also provided to detect the stop of the automobile, but the clutch pedal switch 7 can be omitted. Effects of the Invention As described above, according to the present invention, if the driver forgets to apply the brakes when the vehicle is stopped on a slope, a warning is generated, so the driver immediately knows that the driver has forgotten to apply the brakes, and the driver forgets to apply the brakes. Natural runaway caused by this can be avoided.

[Brief explanation of drawings]

FIG. 1 is an electrical circuit diagram of a brake warning device as an embodiment of the present invention, and FIG. 2 is a diagram showing the configuration of each switch in FIG. 1 in detail. 1...Power supply, 2...Alarm, 3...
... Tilt detection switch, 4 ... Stop detection switch, 5 ... Foot brake switch, 6 ...
...Parking brake switch.

Claims (1)

[Claims] 1. A tilt detection switch that closes when the vehicle tilts, a stop detection switch that closes when the vehicle stops, a foot brake switch that closes when the foot brake is not activated, a parking brake switch that closes when the parking brake is not activated, and an alarm are connected to each other. They are connected in series to a power source, and when the tilt detection switch, stop detection switch, foot brake switch, and parking brake switch are all closed, the alarm becomes energized and generates an alarm. A warning device for automobile brakes.