JPS5911935A - Parking brake alarm device - Google Patents

Abstract

PURPOSE:To prevent any accident by giving warning in case of insufficient braking force while calculating said force required to keep a stop state even after the temperature of a parking brake drops, considering the reduction of the braking force caused by the temperature drop of the parking brake at parking on a slope. CONSTITUTION:Parking on a slope is detected from a slope sensor 2 signal and an engine stop signal such as an ignition switch off signal and an arithmetic circuit 4 operates braking force F required to be kept even if the temperature signal (t) of the brake temperature sensor 1 and the slope signal theta of the slope sensor 2 on the basis of various data in an internal memory such as vehicle weight, and expansion and contraction characteristics caused by the temperature of brake components. And, the required braking force F and the braking force signal (f) of the braking force sensor 3 are compared with each other by a comparing circuit in the arithmetic circuit 4, and when the braking force is at the required level, a lamp 5 is lighted, and when not at the required level, an alarm device is operated to give warning.

Description

[Detailed description of the invention] This button light is for automobiles! It is to be installed overnight in a C-arrogance device manufactured by J Kosho Flake.

It goes without saying that when assembling a car, it is essential to apply a safety bolt.
1l-1 medium rake when parking] 4-signals are dulled in order to prevent φ work and vehicle from being damaged. Conventionally, 11 persimmons are emitted (for example, the Tokko Kokko 41-1813
(See Publication No. 2, Publication No. 49-42582, etc.).

However, the braking force of the brake changes depending on the combined use of the brake itself, so even if the brake is working at the time of parking, if the parking brake is operated at that time, the brake temperature will drop over time, causing the disc rotor and the friction phase that is in pressure contact with it to drop. It contracts and reduces brake effectiveness. When parking on a slope, as mentioned above, if the brake effectiveness decreases due to low brake temperature 1, the car will automatically move to 1. There is a risk that it may lead to unexpected accidents.

The present invention is intended to provide a banquet system capable of dealing with the above-mentioned dangers, and will be described below with reference to the accompanying drawings showing embodiments of the present invention.

In the figure, 1 is a brake temperature sensor that detects the brake temperature, and 2 is a slope sensor that detects the slope of the road surface.The signal of this slope sensor 2 and the engine stop date, such as the ignition switch off information, etc. Karasaka ruins boat car (4)
7#i't of the brake temperature sensor 1.
I'! - From the signal t and the slope of the slope sensor 2, the output of the ζ circuit 4 is 14+! Based on various data such as vehicle volume in memory, expansion and contraction due to temperature PF of brake equipment, and the maximum g (control!!+) on the slope of that slope.
+1: The required braking force F which should be maintained even if the force decreases, is the required braking force F and fl obtained by actually operating the brake.
The comparator circuit in the arithmetic circuit 4 compares the braking force signal f of the braking force sensor 3 that detects the dynamic chipping, and if the braking force has reached the required force, the lamp 5 is turned on. It is clearly indicated that it is UK, and the braking force is required.
If u power is not reached, create a 4-signal device 6 such as a buzzer 1
11] The system warns drivers that if they do not have the ability to detect the parking brake, it will be dangerous if they do not operate it forcefully.

According to the present invention, as shown in the above 1, when the car is on a slope 1M1'111, the temperature of the parking brake is low - the anti-theft control by the training C is suppressed.
Taking into account the decrease in force, calculate the necessary braking force that should be able to maintain the stopped state on the slope at that time even after the temperature has decreased, and if the IM) force from the parking brake operation is less than the above required braking force The alarm system is designed to remind people that they should use the parking brake forcefully if they have a parking brake.
It can completely prevent the accident that the car starts moving on its own as described in 1, and can have an extremely large effect on car safety measures.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing an embodiment of the invention.
FIG. 2 is a block diagram showing an example of the arithmetic circuit shown in the figure. 1...Brake temperature sensor, 2...Gradient sensor, 3
Braking force sensor, 4...Arithmetic circuit, 5...Rung, 6
... @ alarm. that's all

Claims (1)

[Claims] When a car is parked on a slope, the minimum braking ability on the slope of that slope is calculated based on the signal from the brake noise sensor that detects the temperature sound of the brake assembly's flakes, and the signal from the slope sensor that detects the entire slope of the slope. Even if you need to keep it! f
Calculate the ill movement and calculate the actual force of the parking brake (kj) and the above-mentioned necessary control force.
If the above actual tljl-l force is smaller than the required iDU power, the above arithmetic circuit (lIi V) will move up and notify the occupants that the force of the vehicle's brakes is insufficient. 1. Car] ``Rake M) 1 (equipment 100).