JPH01297362A - Alarm device for automobile - Google Patents

Abstract

PURPOSE:To previously prevent the danger of movement of a vehicle on an inclined ground by operating an alarm means when an ignition key switch is in ON-state and the vehicle is in inclined state in the longitudinal direction and a brake means is not in operation. CONSTITUTION:When an ignition key switch 5 is in ON-state, the logic calculation part 7a of a controller 7 takes in the output signal of an inclination sensor 1 for detecting the inclination in the longitudinal direction of a vehicle, and if the signal is in-ON, the output signal of a car speed sensor 2 is judged. When the vehicle is in stop state, and the output signal of the car speed sensor 2 is in-OFF, the output signals f a foot brake 3 and a parking brake 4 are read out. When the both brakes 3 and 4 are not in operation, and an OFF signal is outputted, the output signal of a shift lever switch 6 is read, and when a shift lever is at a neutral position and an ON-signal is outputted, a buzzer 8 is operated through a driving circuit part 7b.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automobile warning device that issues a warning by detecting the inclination of an automobile.

[Conventional technology]

FIG. 3 is a block diagram of a conventional vehicle movement alarm device disclosed in, for example, Japanese Utility Model Application Publication No. 52-100638. In the figure, 2 is a vehicle speed sensor, 4 is a parking brake, and 7a is a logic operation unit. , 7b is a drive circuit section, and 8 is a buzzer.

Next, the operation will be explained. When the vehicle starts moving from a state where the vehicle is stopped and the parking brake 4 is activated, the logic operation section 7a uses the output signals of the parking brake 4 and the vehicle speed detection sensor 2 to output the operation results to the drive circuit section 7b.
A warning signal is generated, the buzzer 8 sounds, and a warning is issued to the driver.

[Lifl to be Solved by the Invention] Since the conventional vehicle movement warning device is configured as described above, even if the vehicle is tilted toward the front and back, if the parking brake 4 is not activated, the warning is issued. If the warning is not issued and the vehicle starts moving, even if the parking brake is activated, if the warning is issued after the vehicle has started moving, if the driver is unlucky enough to be outside the vehicle,
There were some problems, such as the lack of meaning.

This invention was made to solve the above-mentioned problems, and it is possible to foretell and warn the driver of the danger of the vehicle moving against the driver's will on a slope. An object of the present invention is to obtain an automobile alarm system that can detect the state of a vehicle and has high reliability.

[Means to solve the problem]

The automobile alarm device according to the present invention is provided with a control device that drives the alarm means when the ignition switch is in the ON state, the vehicle is tilted in the longitudinal direction, and the braking means is not operating.

[For production]

When the ignition key switch is in the ON state and the vehicle is tilted in the front-rear direction and the braking means is not operating, the control device drives the warning device and starts the vehicle. To warn a person in advance that the vehicle may start moving, and to not issue a warning while the vehicle is running.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, the same parts as in FIG. 3 will be described with the same reference numerals.

In FIG. 1, reference numeral 1 denotes an inclination sensor for detecting the longitudinal inclination of the vehicle, and when the longitudinal inclination of the vehicle is detected, the output signal is turned ON.

Reference numeral 2 denotes a vehicle speed sensor as a vehicle speed detection means for detecting the running state of the vehicle, and when the vehicle is running, the output signal is in the ON state.

3 is a foot brake that brakes the vehicle, and 4 is a parking brake that also brakes the vehicle. The parking brake 4 constitutes a braking means. These fund brakes 3. When the parking brake 4 is in operation, each of its output signals is in the ON state.

Reference numeral 5 denotes an ignition key switch for operating the engine, and when the ignition key switch 5 is turned on, the output signal is turned on.

Reference numeral 6 denotes a shift lever switch for determining the position of the shift lever for operating the transmission, and when the shift lever is in the neutral position, the output signal is in the ON state.

7 is a control device, and 7a is the various sensors mentioned above, that is,
Tilt sensor 1. Vehicle speed sensor 2. Foot brake 3. Parking brake 4. Ignition key switch5. This is a logic operation section that receives the output signal of the shift lever switch 6 and performs logic operations.

Further, 7b is a drive circuit section for driving the alarm means. As the alarm means, for example, a buzzer 8 for generating an alarm is used.

Next, the operation of the present invention will be explained using the flowchart shown in FIG. FIG. 2 is a flowchart showing the flow of calculations performed by the logical calculation section 7a.

The logic operation section 7a of the control device 7 first starts at step 5200 and reads the output signal from the ignition key switch 5 at step 5201.

First, the ON state of the ignition key switch 5 will be explained. The logic operation unit 7a takes in the output signal of the tilt sensor (step S202), and if it is OFF,
The beginning of the flow of logical operations (5TART (S 200 in the figure)
) Return to ) and repeat the calculation.

If the output signal of the inclination sensor is ON, then the output signal of the vehicle speed sensor 2 is judged (step 3203), and if it is ON, the calculation is 5TART (step 5-y
Return to foot brake 5200), and if it is OFF, foot brake 3. The output signal of the parking brake 4 is read (step 5204).

At this time, the logic operation section 7a determines a signal resulting from the logical sum of the output signals of the foot brake 3 and the parking brake 4 (not shown).

If the signal is ON, the calculation is performed in 5TART (step 520
0), and if it is OFF, move to step 8206,
Read the output signal of the shift lever switch 6. In this step 5206, if the output signal of the shift lever switch 6 is ON, the logic operation unit 7a outputs a signal to the drive circuit unit 7b, and step S20? ), the drive circuit section 7b generates an alarm instruction signal, causes the buzzer 8 to sound, and issues an alarm to the driver. The calculation then returns to 5TART (step 3200).

Next, the state in which the ignition key switch 5 is OFF will be explained. The logic operation unit 7a takes in the output signal of the inclination sensor l (step S211), and if it is OFF, the operation returns to the beginning of the logic operation flow (5TAI?T (step 5200) l in the figure) and repeats the operation.

If the output signal of the tilt sensor 1 is ON, step 521
2, the output signal of the parking brake 4 is continued. signal is O
If it is FF, the logic operation unit 7a outputs a signal to the drive circuit unit 7b (step 5213), and the drive circuit unit 7b generates an alarm instruction signal and sounds the buzzer 8 to issue a warning to the driver. Then, the calculation is 5TA) IT (Stember 52
Return to 00).

If the output signal of the parking brake 4 is ON in step 3212, the output signal of the shift lever switch 6 is read in step 5214. If the output signal of the parking brake 4 is OFF, the calculation is performed in 5 TART.
Return to (step 3200).

In step 5214, if the output signal of the shift lever switch 6 is ON, the logic operation section 7a
Step 5215) to output a signal to the drive circuit section 7
b generates a warning instruction signal and sounds the buzzer 8 to issue a warning to the driver.

The calculation then returns to 5TART (step 5200).

In the above embodiment, the case where the buzzer 8 is used as the warning means is exemplified, but instead of the buzzer 8, a lamp may be used to display the warning.

〔Effect of the invention〕

As described above, according to the present invention, when the ignition key switch is in the ON state, the vehicle is tilted in the longitudinal direction, and the braking means is not operating when the vehicle is stopped, the control device drives the warning means to drive the vehicle. For example, if the vehicle is stopped at an intersection and there is a slope in the front and rear, but the foot brake or parking brake is not activated, the vehicle will start moving and the front and rear will be tilted. It is possible to warn the driver of the risk of colliding with another vehicle.

Accordingly, the driver can objectively know the condition of the vehicle, which has the effect of providing high reliability.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a vehicle warning device according to an embodiment of the present invention, FIG. 2 is a flowchart showing the operation flow of the same embodiment, and FIG. 3 is a block diagram showing a conventional vehicle movement warning device. be. 1... Tilt sensor, 2... Vehicle speed sensor, 3... Foot brake, 4... Parking brake, 5...
Ignition key switch, 6...shift lever switch, 7...control device, 8...buzzer. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Masuo Oiwa Figure 1 8 Procedural Amendment (Voluntary)

Claims (1)

[Claims] An inclination detection means for detecting the longitudinal inclination of the vehicle, a vehicle speed detection means for detecting the running state of the vehicle, an ignition key switch for operating the engine, a braking means for stopping the vehicle, and the ignition key switch. and a logic operation unit that drives an alarm means when the vehicle is tilted in the front-rear direction and the braking means is not activated.