JPH027169U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is an overall configuration diagram of the present invention, Figure 2 is a schematic diagram of an anti-skid control device showing an embodiment of the invention, Figure 3 is a schematic diagram of the G sensor in the same device, and Figure 4 is An enlarged configuration diagram of the SLV and its piping system in the same device, FIG. 5 is a flowchart of the program stored in the controller in FIG. 2, and FIG. 6 is an anti-skid control showing another embodiment of the present invention. FIG. 7 is an enlarged block diagram of the SLV of the device and its piping system, and is a schematic block diagram of an anti-skid control device showing the prior art. 4, 5, 9...Wheel cylinder, 6, 6a,
6b... Brake pipe, 8, 8a, 8b... Modulator, 13... G sensor (means for detecting frequency, means for generating road signal), 14... Brake pedal, 15... Brake switch, 17...
...Controller, 18, 18a, 18b...Drive circuit, 30, 30a, 30b, 30c, 30d...
...Wheel speed sensor (means for detecting frequency, means for generating road signal), 50, 50a, 50b...
... fixed throttle valve, 61 ... detection means, 62 ... road surface condition determination means, 63 ... frequency comparison means, 64 ...
... Throttle valve control means, 65 ... Switching means, 68, 6
8a, 68b...throttle valve, 100...anti-skid control means, LFW, RFW...front wheel, LRW
, RRW...Rear wheel, P...Predetermined value.

Claims (1)

[Scope of utility model registration request] A wheel speed sensor that detects the wheel speed of the vehicle and sends a speed signal corresponding to the wheel speed, a brake switch that detects whether the brake pedal is on or off, and a brake pipe that supplies brake fluid to the wheel cylinder of the wheel. a modulator that controls brake fluid pressure in a brake pipe; a drive circuit that sends a drive signal that operates the modulator; and a fixed throttle valve that is disposed between the modulator and the brake pipe and throttles the flow rate of the brake pipe. , detects whether or not the wheels are in a locking tendency based on the speed signal, and if any wheel is in a locking tendency, brake fluid pressure is applied to the drive circuit that drives the modulator on the side of the wheel that is in the locking tendency. and anti-skid control means for transmitting an anti-skid signal that causes the brake fluid pressure to be released in steps with a hold time in between, wherein the fixed throttle valve is a throttle valve that can also be selected to be fully open. At the same time, a detection means is provided which includes a means for detecting the frequency in the vertical direction of the vehicle when the brake is off and a means for generating a road surface signal according to the acceleration/deceleration of the vehicle or wheels during braking, and the road surface signal from the detection means is provided. road surface condition determining means for determining whether the road surface is a high μ road or a low μ road based on the road surface condition signal from the road surface condition determining means;
throttle valve control means for sending to the throttle valve a high μ road signal that fully opens the throttle valve in the case of a road, and a low μ road signal that throttles the throttle valve in the case of a low μ road; Frequency signal from means and predetermined value P
a frequency comparison means that compares the frequency signal with a predetermined value P or more, determines that the road is rough and sends out a rough road signal, and when the rough road signal is received from the frequency comparison means, 1. An anti-skid control device comprising: switching means for switching a signal sent from the valve control means to the throttle valve to a high μ road signal.