JPH0463759A - Display device of anti-skid brake control device for connected vehicle - Google Patents

Abstract

PURPOSE:To easily grip a failure part by operating an operating means for starting the displaying of the failure part when the failure is detected, and whereby displaying the vehicle on the side where the failure has happened, as well as the failure part following a vehicle discrimination display pattern as well as a failure part display pattern. CONSTITUTION:When a displaying is to be carried out for a connected vehicle 1 provided with anti-skid braking control systems (ABS) 4, 5 on a tractor 2 as well as on a trailer 3, a lamp 36 for displaying whether or not there is an ABS for trailer, and a failure display lamp 37 for displaying the failure of the ABS 4, 5, are laterally provided in a line on the side of the tractor 2. When the failure display lamp 37 is lighted by the failure of the ABS 4, 5, a code of combination of lighting and turning out is set, in such a way that, for example, the lighting of the failure display lamp 37 for 0.3 seconds, as well as the turning out thereof for 0.6 seconds, are repeated three times, after the lamp 37 is once turned out by the failure part displaying operation of a driver, and the failure part is easily gripped by having the code corresponded to components of the ABS 4, 5, for example, to one of speed sensors.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a display device for an anti-skid brake control device in a vehicle, and particularly to a display device for displaying an anti-skid brake control device in a coupled vehicle such as a tractor-trailer and for preventing a failure in the anti-skid brake control device in a coupled vehicle such as a tractor-trailer. The present invention relates to a display device that displays the presence or absence of a skid brake control device.

(Prior Art) In general, anti-skid brake control is performed by, when it is detected that a wheel is in a skid state during braking, the braking force of that wheel is relaxed to eliminate the skid state, and then the braking force is increased again. , which stabilizes vehicle handling and performs brake control so that the braking distance is as short as possible.

By the way, for example, if the anti-skid brake control device (hereinafter also referred to as ABS) malfunctions when the brake force is loosened, the brake force remains relaxed and the brakes cannot be applied again, or the wheels may become too tight. If the ABS malfunctions when braking is applied with a certain amount of braking force and a skid occurs, the brake force may not be relaxed and the skid may not be eliminated.

Therefore, in the past, as disclosed in, for example, Japanese Patent Publication No. 58-58257, when the ABS malfunctions, a warning lamp is often turned on to warn the driver. .

Incidentally, even in coupled vehicles such as tractor trailers, an anti-skid brake control device is often provided for each vehicle. When these anti-skid control devices malfunction, a malfunction indicator lamp as described above is provided in the driver's seat to display the malfunction and warn the driver. In this case, two fault indicator lamps are provided, one for each vehicle, a tractor and a trailer. By providing two malfunction indicator lamps in this way, it is possible to immediately know which vehicle's anti-skid brake control device is malfunctioning.

(Problems to be Solved by the Invention) However, providing two fault indicator lamps as described above not only increases the number of parts but also requires a large space for installing the lamps. Therefore, it is conceivable to use a single failure indicator lamp to serve as a failure indicator for each anti-skid brake control device of a tractor and trailer.

However, in this case, a problem arises in that it is not possible to distinguish whether the illumination of the failure indicator lamp indicates a failure in the anti-skid brake control device on the tractor side or in the anti-skid brake control device on the trailer side.

Further, the above-mentioned conventional warning device merely warns of a failure of the anti-skid control device, so the driver cannot grasp which part of the anti-skid control device has failed.

Additionally, trailers for coupled vehicles may be equipped with ABS or not, but if a trailer that is not equipped with ABS is coupled, the driver should drive with even more caution. To do this, the driver must be able to easily know that the trailer is not equipped with ABS.

Therefore, an indicator lamp is provided on the instrument panel of the driver's seat of the tractor to indicate the presence or absence of trailer ABS, and this indicator lamp lights up when the trailer is not equipped with ABS.

However, if a trailer ABS status indicator lamp is provided in addition to the above-mentioned malfunction indicator lamp, the problem arises that not only the number of parts will further increase, but also the installation space will also increase. be.

The present invention has been made in view of these problems, and its purpose is to reduce the number of indicator lamps as much as possible and reduce the installation space, while also reducing the number of display lamps in any vehicle. An object of the present invention is to provide a display device for an anti-skid brake control device in a coupled vehicle that can clearly identify whether the skid brake control device is malfunctioning.

Another object of the present invention is to provide a display device for an anti-skid control device in a coupled vehicle that can easily identify which part of the anti-skid control device has failed when the anti-skid control device has failed. It is to provide.

Furthermore, another object of the present invention is to reduce the number of indicator lamps as much as possible so that the installation space thereof can be reduced, and also to indicate whether the indicator lamps are malfunctioning in the anti-skid brake control device or the anti-skid brake for a trailer. It is an object of the present invention to provide a display device for an anti-skid brake control device in a coupled vehicle that can clearly identify whether the control device is present or not.

(Means for Solving the Problem) In order to solve the above-mentioned problem, the display device of the anti-skid brake control device in a coupled vehicle according to the invention of claim 1 has the following features: display pattern setting means for setting a failure location display pattern corresponding to the vehicle identification display pattern and a vehicle identification display pattern indicating either the tractor or the trailer; , a control means for outputting a failure indication signal in accordance with the vehicle identification display pattern set by the display pattern setting means and the failure location display pattern corresponding to the failure location; a control means for detecting a failure and its failure location and outputting a failure display signal according to the vehicle identification display pattern set by the display pattern setting means and the failure location display pattern corresponding to the failure location; A failure display means for displaying a failure of the anti-skid brake control device in response to a failure display signal output from at least one of the two control means, and an operation means for starting display of the failure location; The present invention is characterized in that, upon operation, each of the control means causes the failure display means to perform a display according to the display pattern.

Further, the invention according to claim 2 is characterized in that the control means for outputting a failure display signal of the anti-skid brake control device on the tractor side first displays a failure location of the anti-skid brake control device on the trailer side on the failure display means, The present invention is characterized in that the failure location of the anti-skid brake control device on the tractor side is displayed after the failure display of the anti-skid brake control device on the trailer side is completed.

Further, in the invention of claim 3, the failure display means is a failure display lamp, the failure display pattern and the vehicle identification display pattern are a flashing pattern of the failure display lamp, and each of the control means controls the flashing pattern according to the flashing pattern. Therefore, the present invention is characterized in that the failure indicator lamp is blinked.

Furthermore, the invention according to claim 4 is characterized in that the operation means for displaying the failure location is a brake pedal.

Furthermore, the display device for the anti-skid brake control device in a coupled vehicle according to the invention of claim 5 includes: a failure display control means for a tractor that detects a failure of the anti-skid brake control device of the tractor and outputs a failure display signal; a trailer failure display control means for detecting a failure of the anti-skid brake control device and outputting a failure indication signal;
The anti-skid brake control device presence/absence display control means detects that the trailer does not have an anti-skid brake control device and outputs an anti-skid brake control device non-display signal, and the light is turned on by a failure display signal from the tractor failure display control means. an indicator lamp for a tractor that is turned on by a failure indication signal from the trailer failure indication control means, and a trailer lamp that is turned on by the anti-skid brake control device non-display signal from the anti-skid brake control device presence indication control means; and a trailer indicator lamp, the trailer indicator lamp indicating in a first color a failure of the anti-skid brake control device of the trailer and indicating in a second color that the trailer does not have an anti-skid brake control device. It is characterized by being composed of two-color lamps.

Furthermore, the display device for the anti-skid brake control device in a coupled vehicle according to the invention of claim 6 includes: a failure display control means for a tractor that detects a failure of the anti-skid brake control device of the tractor and outputs a failure display signal; A trailer failure display control means detects a failure of the anti-skid brake control device and outputs a failure indication signal, and detects that the trailer does not have an anti-skid brake control device and outputs an anti-skid brake control device no display signal. The light is turned on by a failure display signal from the anti-skid brake control device presence/absence display control means and the tractor failure display control means, the light is turned on by a failure display signal from the trailer failure display control means, and the anti-skid brake control and a coupled vehicle display lamp that lights up in response to the anti-skid brake control device non-display signal from the device presence/absence display control means, and the coupled vehicle display lamp indicates a failure of the anti-skid control device of the tractor in a first color. The present invention is characterized by a two-color lamp that displays, in a second color, the absence of an anti-skid brake control device on the trailer and a failure of the anti-skid brake control device on the trailer.

Furthermore, the invention according to claim 7 is characterized in that the first color is red and the second color is orange.

(Function) In the display device for the anti-skid brake control device according to the invention of claim 1 having such a configuration, when at least one of the tractor anti-skid brake control device and the trailer anti-skid brake control device fails, a corresponding The control device detects the failure and causes the failure display means to display the failure.

Then, by operating the operating means that starts displaying the fault location, the corresponding control device displays the vehicle on the faulty side and the fault location in accordance with the vehicle identification display pattern and the fault location display pattern corresponding to the fault location. Display.

This allows the driver to easily know which part of the anti-skid brake control device of which vehicle out of the tractor and trailer is malfunctioning.

Further, in the display device for the anti-skid brake control device according to the invention of claim 5, when the anti-skid brake control device of the tractor malfunctions, the tractor malfunction display control means detects the malfunction and lights up the tractor display lamp. . This informs the driver that the tractor's anti-skid brake control device is malfunctioning.

On the other hand, if the anti-skid brake control device of the trailer malfunctions, the trailer malfunction display control means detects the malfunction and turns on the trailer display lamp. Further, if the trailer does not have an anti-skid brake control device, the anti-skid brake control device presence/absence display control means detects that there is no anti-skid brake control device and turns on the trailer indicator lamp. In this case, the trailer indicator lamp is composed of a two-color lamp, and a malfunction of the anti-skid brake control device is displayed in the first color, and a failure of the anti-skid brake control device is displayed in the second color. Therefore, by looking at the lighting color of the indicator lamp, the driver can easily and reliably know whether the trailer anti-skid brake control device is malfunctioning or whether there is no trailer anti-skid brake control device. Moreover, the trailer indicator lamp lights up due to a malfunction of the anti-skid brake control device and the trailer indicator lamp lights up due to no anti-skid brake control device do not occur at the same time, so the lighting colors are mixed and become unclear, making identification difficult. It will never become.

Further, in the display device for the anti-skid brake control device according to the invention of claim 6, the display lamp for the connected vehicle has two display lamps.
The first color indicates a failure of the anti-skid brake control device for a tractor, and the second color indicates a failure of the anti-skid brake control device for a trailer or no anti-skid brake control device for a trailer. Is displayed. Therefore, by looking at the lighting color of the indicator lamp, the driver can easily and reliably determine whether the anti-skid brake control device for the tractor is malfunctioning, the anti-skid brake control device for the trailer is malfunctioning, or there is no anti-skid brake control device for the trailer. can be known. However, in this case, if the tractor anti-skid brake control device malfunctions and the trailer anti-skid brake control device malfunctions simultaneously, and the connected vehicle indicator lamp lights up, the first color and second color
The colors mix together, making it difficult to distinguish by color.

(Example) Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 1 is a schematic diagram showing an example of an anti-skid brake control device to which an embodiment of the present invention is applied.

As shown in FIG. 1, a vehicle 1 is a connected vehicle in which a tractor 2 & a semi-trailer 3 are connected.
and the trailer 3 are each provided with an anti-skid brake control system (ABS) 4.5.

The ABS 4 of the tractor 2 is supplied from a brake actuator 8.9 consisting of a power chamber (air chamber) that mechanically brakes the left and right front wheels 6.7, and a brake valve 1 (not shown) to these actuators 8 and 9. Modulator 10 that adjusts brake operating pressure (air pressure)
and a brake actuator 12 consisting of a spring brake chamber that mechanically applies braking to the left rear wheel 11.
, a modulator 13 that adjusts the brake operating pressure (air pressure) of this actuator 12, a brake actuator 15 consisting of a spring brake chamber that mechanically applies braking to the right rear wheel 14, and a brake operating pressure (air pressure) of this actuator 15. a controller (ECU) 17 that is electrically connected to each modulator (M) 10, 13.16 and controls them; and a controller (ECU) that detects the rotational speed of each wheel. Speed sensor 1 sent to ECU) 17
8.19, 20.21.

On the other hand, the ABS5 of trailer 3 is
Brake actuator 24a, 2 consisting of a power chamber (air chamber) that mechanically applies braking to 2.23.
4b, and these actuators 24a, 24b
Modulator 2 that adjusts the brake operating pressure (air pressure) of
5, and a brake actuator 2 consisting of a power chamber that mechanically applies braking to the pair of wheels 26 and 27 on the right side.
8a, 28b, and a modulator 29 that adjusts the brake operating pressure (air pressure) of the actuators 28a, 28b.
and a controller (ECU) 30 that electrically connects to each modulator 25, 29 and controls them;
Speed sensor ++31.3 that detects the rotational speed of each wheel 22.26 and sends it to the controller (ECU) 30
2.

These ABS4.5 functions are almost the same as conventional known ABS.

FIG. 2 is an electrical wiring diagram for both ABSs 4 and 5.

As shown in FIG. 2, on the tractor side, each modulator 10, 13, 16 and each speed sensor 18-21 are connected to the controller 17 as described above.

In addition, the brake lamp 33 of the tractor, this brake lamp 3
3 relay 34 and brake rake pedal switch 3
5 is provided, and the brake lamp 33 is connected to the controller 17.

Further, on the tractor side, there are provided a trailer ABS presence/absence indicator lamp 36 and an anti-skid brake control device failure indicator lamp 37 for indicating a failure of the ABS 4 in the tractor 2 and a failure of the ABS 5 in the trailer 3. As shown in Fig. 3, these indicator lamps 36 and 37 are arranged side by side and assembled as an indicator lamp sub-assembly.This sub-assembly is assembled to the operation panel of the driver's seat of the tractor 2.6 Similarly, each indicator Lamps 36 and 37 are also connected to the controller 17, and the trailer ABS presence/absence indicator lamp 36 is connected to the trailer information module 39. And this trailer ABS presence/absence indicator lamp 3
6, the lighting is controlled by a trailer information module 39.

On the other hand, on the trailer side, each modulator 25, 29 and each speed sensor 31, 32 are connected to the controller 30 as described above. Further, a trailer brake lamp 40 is provided, and this brake lamp 40 is connected to the controller 30 and a connector 4
1 to the relay 34.

Electrical wiring for ABS4 on the tractor side and ABS on the trailer side
The electrical wiring in 5 is the connector 42 for anti-skid control.
connected via. Therefore, the fault indicator lamp 37 and the trailer information module 39
is connected to the controller 30 via a connector 42.

FIG. 4 is a diagram showing the relationship between the lighting and extinguishing of each indicator lamp 35 and 37 and the display content.

As is clear from Figure 4, tractor 2 and trailer 3
When the ABS 4.5 is connected to the tractor 2 and the trailer 3, the trailer ABS presence/absence indicator lamp 36 is turned off. On the other hand, if the ABS 4 of the tractor 2 or the ABS 5 of the trailer 3 fails, the failure indicator lamp 37 lights up.

In addition, if the trailer 3 is connected to the tractor 2 and the tractor 2 is equipped with ABS4, but the trailer 3 is not equipped with ABS4, the trailer A
The BS presence/absence indicator lamp 36 lights up. As a result, the driver recognizes that the trailer 3 is a vehicle that is not equipped with ABS, and drives the trailer 3 with even more caution. When the ABS 4 of the tractor 2 malfunctions, the malfunction indicator lamp 37 lights up. In this case, trailer 3
Since the ABS 5 is not provided in the trailer 3, the failure indicator lamp 37 does not indicate that the ABS 5 of the trailer 3 has failed.

Furthermore, when the trailer 3 is not coupled to the tractor 2, the trailer ABS presence/absence indicator lamp 36 is turned off. Further, when the ABS 4 of the tractor 2 malfunctions, the malfunction indicator lamp 37 lights up.

By setting the relationship between the lighting and extinguishing of each indicator lamp 36 and 37 and the display contents in this way, the driver can check the connection state of the trailer 3 and the presence or absence of ABS 5 in the trailer 3 by looking at the lighting state of each indicator lamp. , it is possible to know the failure of each ABS4.5 of the tractor 2 or trailer 3. In that case, which AB of ABS 4 or 5
It is impossible to know whether S is out of order.

In order to detect ABS 4 and 5 failures, self-diagnosis is performed in a well-known self-diagnosis mode, as in the past.
When a controller 17.30 detects a failure in the corresponding ABS 4.5, each controller 17.30 lights up a failure indicator lamp 37. This self-diagnosis is performed constantly.

By the way, in this embodiment, both ABS 4.5 failures are indicated by only one failure indicator lamp 37, so the relationship between the lighting and extinguishing of each indicator lamp and the display contents shown in FIG. , When ABS4 of tractor 2 or ABS5 of trailer 3 breaks down, those ABs
The driver cannot identify which ABS, S4 or S5, has failed, or whether both ABS4 and S5 have failed. Furthermore, the driver cannot know which part of ABS 4.5 is malfunctioning. However, when the ABS of the connected vehicle malfunctions, both the tractor and trailer
It is desirable to be able to clearly know whether the BS has failed and the location of the failure in order to quickly and accurately deal with the failure.

Therefore, in this embodiment, when an ABS malfunctions, it is possible to clearly and easily know which ABS has malfunctioned and the location of the malfunction even with just one malfunction indicator lamp 37. Hereinafter, means for knowing which ABS is malfunctioning and means for knowing the location of the failure will be explained.

FIG. 5 is a diagram showing an example of a failure location display pattern.

As shown in FIG. 5, the controller 17.30
4.5 is detected and the failure indicator lamp 37 is turned on, the failure indicator lamp 37 is temporarily turned off by the driver's operation to display the failure location, which will be described later. After lights out, for example 2.4
After sec has elapsed, the failure indicator lamp 37 shows 0.3ae.
Lights on for c and then turns off. After another 0.6 seconds have elapsed, the failure indicator lamp 37 lights up again for 0.3 seconds, and then turns off. In this way, the failure indicator lamp 37 is set to 0.
．． Turning on for 3 aec and turning off for 0.6 aec is repeated three times.

Next, after the failure indicator lamp 37 is lit for 1.2 aec, the failure indicator lamp 37 is turned off. After turning off, the failure indicator lamp 37 turns off for 0.6 seconds and stays on for 0.3ae.
The lighting between c is repeated twice. When the fault location display is completed, the fault indicator lamp 37 is turned on again after being turned off continuously for 3.0 aec or more. Due to this combination of turning on or turning off the faulty lamp, the first number of repetitions of lighting for a short time is 3, and the number of repetitions of lighting for a relatively long time is 1.
A code [312] is set for the combination of the number of repetitions of the last short period of lighting and the number of repetitions of 2. And this code [
312] to one of the components of the anti-skid brake control device 4.5, such as a speed sensor, so that when the failure indicator lamp performs the flashing pattern of this code [312], the driver can can tell when something is broken.

As shown in Figure 6, by setting various codes corresponding to each component of the ABS, the fault indicator lamp will blink in a flashing pattern according to the code, allowing the driver to easily locate the fault location. You will be able to do this. Various codes set corresponding to each component of the ABS are stored in advance in a memory (not shown) in the controller 17.30. In addition, as shown in the figure, the same code blinking pattern is repeated three times as a failure indication, and the repeated blinking pattern of the failure location is repeated three times to more clearly display the failure location. There is. Note that the flashing time of the failure lamp can be set to any other arbitrary time, and the number of times the display is repeated is not limited to three times, but can be set to any arbitrary number.

Next, the display indicating whether the ABS 4 on the tractor side or the ABS 5 on the trailer side is malfunctioning will be explained.

FIG. 7 is a diagram showing an example of the display by the failure indicator lamp 37 when only a failure occurs in the ABS 4 on the tractor side.

As shown in FIG. 7, if only the ABS 4 on the tractor side is out of order, and in addition, a component of the ABS 4 corresponding to code [114] is out of order, the controller 17 detects this failure and turns on the failure indicator lamp. A lighting command signal is output, and the failure indicator lamp 37 is lit. The failure indicator lamp 37 is once turned off by the driver's failure location display operation, which will be described later, by depressing the brake pedal three or more times in two seconds. For example, after 2.4 seconds have elapsed after the lights went out,
The failure indicator lamp 37 lights up for 1.2 aec and then goes out. Then, after 0.6 seconds have passed, the failure indicator lamp 37 lights up again for 1.2 aec, and then goes out.

After turning off, the failure indicator lamp 37 repeats turning off for 0.6 aec and turning on for 0.3 sec again. And 3
After being turned off for more than @ec, the failure indicator lamp 37 is turned on again. In this way, the failure indicator lamp 37 flashes in a flashing pattern according to the code [114].
Displays the failure location of S4. That is, when the ABS 4 on the tractor 2 side is malfunctioning, the failure indicator lamp 37 immediately turns off to display the failure location 2.4 seconds after the failure indicator lamp 37 is turned off by the driver's failure location display operation.
7 flashing pattern starts. This pattern that immediately displays the failure location is a vehicle identification display pattern that indicates the tractor side, and this vehicle identification display pattern is set by the controller 17. Due to the blinking pattern of the failure indicator lamp 37, the driver should check the ABS on the tractor side.
You can know that the part corresponding to code 4 [114] is malfunctioning.

FIG. 8 is a diagram showing an example of the display by the failure indicator lamp 37 when only a failure occurs in the ABS 5 on the trailer side.

As shown in FIG. 8, if only the ABS 5 on the trailer side is out of order and a component of the ABS 5 corresponding to code [312] is out of order, the controller 30 detects this failure and turns on the failure indicator lamp. A lighting command signal is output, and the failure indicator lamp 37 is lit. In that case, the controller 30 detects a failure in the ABS 5 on the trailer side and attempts to turn on the failure indicator lamp 37 by turning on the transistor and grounding the wiring A, so that the voltage on the wiring A decreases.

When the driver operates to display the fault location, the fault indicator lamp 37 flashes quickly for a predetermined number of times (for example, five times in the illustrated example), and then the fault indicator lamp 37 turns off. For example, after 2.4 seconds have elapsed after the lights went out,
Similarly to the above, the failure indicator lamp 37 displays a blinking pattern according to code [312]. In this way, if the ABS5 on the trailer 3 side is malfunctioning,
The failure indicator lamp 37 first flashes a predetermined number of times in response to the driver's failure location display operation, so the driver can know that the ABS 5 on the trailer 3 side is malfunctioning. That is, a pattern in which flashing is performed quickly a predetermined number of times is a vehicle identification display pattern indicating the trailer side, and this vehicle identification display pattern is set by the controller 30.

Then, based on the subsequent flashing pattern of the failure location display, the driver can know that the location corresponding to code [312] of ABS5 on the trailer side is malfunctioning.

Figure 9 shows the failure indicator lamp 3 when a failure occurs in both the ABS 4 on the tractor 2 side and the ABS 5 on the trailer 3 side.
FIG. 7 is a diagram showing an example of a display according to No. 7;

As shown in FIG. 9, a component corresponding to code [114] of ABS4 on the tractor side is malfunctioning, and a component corresponding to code [31] of ABS5 on the trailer side is malfunctioning.
2], the controllers 17 and 30 detect this failure, output a failure indicator lamp lighting command signal, and turn on the failure indicator lamp 37.

However, simply turning on this failure indicator lamp 37 does not allow the driver to control the ABS4 on the tractor side and the ABS4 on the trailer side.
Not only is it impossible to know which ABS of the BS5 is malfunctioning, but also the location of the malfunction cannot be known. Therefore, the driver performs an operation to display the location of the failure. The controller 17 on the tractor side detects a drop in the voltage of the wiring A and detects that a failure has also occurred in the ABS 5 on the trailer side. The controller 17 first displays the failure of the ABS 5 on the trailer side, and then displays the failure of the ABS 4 on the tractor side.

That is, in FIG. 9, first, as a display on the trailer side, the failure indicator lamp 37 is caused to quickly flash five times as shown in FIG. 8. Then the code [312
] The failure indicator lamp 37 is made to blink in a blinking pattern according to the following. In that case, the failure indicator lamp 37 will display the code [3
12] is repeated three times. In that case,
The light-off time between each blinking pattern is set to 2.4 seconds. When the code [312] flashes three times, the fault indicator lamp 37 goes out for 3 seconds or more, and then the fault indicator lamp 37 turns off with the code [1].
14] in a blinking pattern. In that case, by turning off the failure indicator lamp 37 continuously for 3 seconds or more, the driver can understand that the flashing of the failure indicator lamp 37 at this time indicates a failure in the area corresponding to the code [114] in the ABS 4 on the tractor side. Know. This code [
When the 114 blinking pattern is repeated three times, the display of the failure location ends. In this case as well, the light-off time between each blinking pattern is set to 2.4 seconds. code[
114], the failure indicator lamp 37 is continuously turned off for, for example, 3 seconds or more, and then the failure indicator lamp 37 is continuously lit again.

In this manner, if there is a failure in the ABS of both the tractor and the trailer, the failure location on the trailer side is first displayed. In this case, when the failure indication starts, the failure indicator lamp 37 flashes five times quickly, so that it can be known that the failure indication is on the trailer side. If there are multiple failure points in the ABS 5 on the trailer side, the same blinking pattern is repeated three times, and a blinking display is displayed for the number of failure points. When the failure display on the trailer side ends, the failure indication on the tractor side will be displayed, but in that case, the failure indication lamp 3 will be displayed for 3 seconds or more.
7 is continuously turned off, so the driver can know that the fault display has changed to the tractor side. This failure indication on the tractor side is performed in the same manner as the failure indication on the trailer side.

Next, the operation for displaying the failure location will be explained.

In order to display the failure location, if the ABS 4.5 fails and the failure indicator lamp 37 lights up, the driver first stops the vehicle in order to display the failure location. Once the vehicle has stopped, the brake pedal is depressed a predetermined number of times (for example, 3 times in the illustrated example) or more within a set time (for example, 2 seconds in the illustrated example) to start controlling the display of the failure location.

By starting the display control of the failure location using the brake pedal depression signal in this manner, special wiring for starting the display of the failure location becomes unnecessary. In addition, by displaying the fault location only when the vehicle has stopped and the brake pedal has been depressed a predetermined number of times within a set time, it is possible to prevent the fault location from being displayed when unnecessary. . Note that the set time and the number of times the brake pedal is depressed can be set as appropriate other than the above.

10 and 11 are diagrams showing a flow for displaying such a failure location, and FIG. 10 is a diagram showing a flow for displaying a failure of the ABS on the tractor side.
FIG. 1 is a diagram showing the flow of failure indication for the trailer-side ABS.

As shown in Figure 10, the ABS
4 is out of order by the controller 17. When it is determined that the ABS 4 is malfunctioning, for example, a transistor (not shown) in the controller 17 becomes conductive and the circuit of the malfunction indicator lamp 37 is grounded, so that the ABS malfunction indicator lamp 37 lights up. Next, it is determined whether the vehicle speed is 0 or not based on the detection signals from the speed sensors 18.19 and 20.21. When it is determined that the vehicle speed is 0, that is, the vehicle is stopped, the controller 17 then determines whether the brake pedal is depressed three times or more in two seconds. In this determination process, first, a brake pedal depression signal from the brake pedal switch 35 is input to the controller 17. In that case, a circuit B branched from the circuit of the brake lamp 33 is grounded in the controller 17, and a brake pedal depression signal is input to the controller 17 when the brake pedal switch 35 is turned on. Based on these signals, the controller 17 determines whether the driver has depressed the brake pedal three or more times in two seconds.

If it is determined that the brake pedal has been depressed three or more times in two seconds, the controller 17 temporarily stops the lighting signal of the failure indicator lamp 37 that has been output to indicate a failure of the ABS 4.

Next, it is determined whether the failure indicator lamp 37 is lit due to a failure of the ABS 5 on the trailer 3 side, in other words, whether the ABS 5 on the trailer 3 side is malfunctioning. This determination is made by the controller 17 measuring the voltage of the wiring A as described above.

Failure indicator lamp 3 due to failure of ABS5 on trailer 3 side
When it is determined that 7 is on, the first thing to do is to turn on A on the trailer side.
The fault location of BS5 is displayed, and the display of the fault location of ABS4 on the tractor side is waited until the display of the fault location of ABS5 is completed. Next, it is determined whether the display of the failure location of the ABS 5 on the trailer side has been completed. AB on the trailer side
If the failure location display in S5 has not been completed, the failure location display for the ABS 5 on the trailer side continues, and the display waits without displaying the failure location on the tractor side.

When it is determined that the display of the failure location of the ABS 5 on the trailer side has been completed, the failure display lamp 37 is continuously turned off for 3 see, and then the failure location of the ABS 4 on the tractor side is displayed. Next, it is determined whether or not the failure location display of the ABS 4 on the tractor side has been completed.

If the display of the failure location of the ABS 4 on the tractor side has not been completed, the display of the failure location of the ABS 4 on the tractor side is continued. When the display of the failure location of the ABS 4 on the tractor side is completed, the failure indicator lamp 37 is continuously turned on after being turned off for 3 seconds or more. On the other hand, if there is no failure in the ABS 5 on the trailer side, the failure location of the ABS 4 on the tractor side is immediately displayed.

Furthermore, when it is determined that there is no failure in the ABS 4, the failure detection control in the self-diagnosis mode is repeated again. Further, when it is determined that the vehicle speed is not 0 or when it is determined that the brake pedal is not depressed three times or more in two seconds, the failure indicator lamp 37 is kept lit.

Next, the control flow on the trailer side will be explained.

As shown in FIG. 11, the self-diagnosis mode allows the controller 3 to determine whether or not the ABS 5 of the trailer 3 is out of order.
Determined by 0. When it is determined that there is a failure, for example, a transistor (not shown) in the controller 30 becomes conductive, and the circuit of the failure indicator lamp 37 is grounded, so that the failure indicator lamp 37 lights up. Next, it is determined whether the vehicle speed is 0 or not based on the detection signals from the speed sensors 31 and 32. When it is determined that the vehicle speed is 0, that is, the vehicle is stopped, the controller 30 then
It is determined whether the brake pedal is depressed three times or more in two seconds. In this determination process, first, a brake pedal depression signal from the brake pedal switch 35 is input to the controller 30. In that case, the brake lamp 40
A circuit branched from the circuit is grounded within the controller 30, and when the brake pedal switch 35 is turned on, a brake pedal depression signal is input to the controller 30. controller 3
Based on these signals, 0 determines whether the driver has depressed the brake pedal three or more times in two seconds.

When it is determined that the brake pedal has been depressed three times or more in two seconds, the controller 30 starts displaying the location of the failure in the ABS 5 on the trailer side. To display the fault location of ABS5 on the trailer side, first turn on the fault indicator lamp 3.
Flash 7 5 times in rapid flash. After the five quick blinks are completed, the failure indicator lamp 37 starts blinking in a blinking pattern according to the code corresponding to the failure location of the ABS 5 to start displaying the failure location.

Next, it is determined whether the display of the failure location of the ABS 5 on the trailer side has been completed. If it is determined that the display of the ABS 5 failure location has not been completed, the display of the ABS 5 failure location is continued. When it is determined that the display of the failure location of the ABS 5 has been completed, the failure indicator lamp 37 is then turned off continuously for 3 seconds or more.

After the failure indicator lamp 37 has been turned off continuously for 3 seconds or more, whether or not a failure indicator lamp lighting command signal is output due to a failure of the ABS 4 on the tractor side, in other words, the AB on the tractor side
Determine whether S4 is out of order. A on the tractor side
When it is determined that the BS4 is malfunctioning, display of the malfunction location of the ABS4 is started. Next, it is determined whether or not the display of the ABS4 failure location has been completed.If it is determined that the display of the failure location has not been completed, the display of the failure location is continued. When it is determined that the indication of the failure location of the ABS 4 has been completed, the failure indicator lamp 37 is turned off continuously for 3 seconds or more and then turned on continuously.

Further, when it is determined that there is no failure in the ABS 5, the failure detection control in the self-diagnosis mode is performed again. Furthermore, if it is determined that the vehicle speed is not 0, or if it is determined that the brake pedal is not depressed three or more times in two seconds,
The failure indicator lamp 37 is kept lit.

In this way, one failure indicator lamp 37 causes
The failure location of the ABS 4 on the tractor side and the failure location of the ABS 5 on the trailer side are displayed so that the driver can easily understand them.

Next, other embodiments of the present invention will be described.

FIG. 12 is a diagram showing another embodiment of the present invention.

In the embodiment described above, two indicator lamps are provided, one indicator lamp is used as a common fault indicator lamp for tractors and trailers, and the other indicator lamp is used as a common fault indicator lamp for trailers.
In contrast, in this embodiment, one of the two indicator lamps is used as a failure indicator lamp for the ABS4 on the tractor side, and the other indicator lamp is used as a failure indicator lamp for the ABS4 on the tractor side. It is used as a failure indicator lamp for ABS5 and an ABS presence/absence indicator lamp for trailers. That is, in FIG. 2, the failure indicator lamp 37 is used as a failure indicator for the ABS 4 on the tractor side, and the trailer ABS presence/absence indicator lamp 36 is also used as a failure indicator for the ABS 5 on the trailer side. That is, the trailer ABS presence/absence indicator lamp 36 constitutes the trailer indicator lamp of the present invention. In this case, in the above-mentioned embodiment, the wiring that conveys the failure indication signal from the controller 30 is connected to the wiring A, whereas in the present invention, the wiring that conveys the failure indication signal is connected to the trailer ABS presence/absence indication lamp 36. Wiring C
will be connected to.

In this way, not only is it not necessary to use completely separate wiring, but there is also no need for additional circuitry for indicating failure and indicating the presence or absence of ABS, so the display device can be easily formed.

Further, in this embodiment, the malfunction indicator lamp 37 is a red light, and the trailer ABS presence/absence indicator lamp 36 is a two-color light consisting of red and orange. And A for trailer
The BS presence/absence indicator lamp 36 indicates that the trailer 3 is
When indicating that S5 is missing, it is displayed in orange,
When indicating that the ABS 5 of the trailer 3 is out of order, it is displayed in red. Since the trailer side ABS 5 failure indication and the trailer ABS 5 presence/absence indication are not used at the same time, one indicator lamp can display two types of contents in this way. Therefore, while driving from the driver's seat, the driver can determine whether the ABS4 on the tractor side is malfunctioning by checking the lit color of the indicator lamp 36.
You can find out whether the ABS5 on the trailer side is malfunctioning or whether there is no ABS5 on the trailer side. By color-coding in this way, identifiability is greatly improved.

FIG. 13 is a diagram illustrating still another embodiment of the present invention.

In this embodiment, one indicator lamp is used to control AB and B of the tractor 2.
S4 failure table claw Displays the ABS5 failure of the trailer 3 and the presence or absence of the ABS5 of the trailer 3. That is, these indications are made by one connected vehicle indicator lamp 36, and therefore the failure indicator lamp 37 is omitted in FIG.

The connected vehicle indicator lamp 36 consists of two colors of red and orange, and when the ABS 4 of the tractor 2 is out of order,
The indicator lamp 36 lights up in red.

Further, when the trailer 3 does not have the ABS 5 or when the ABS 5 of the trailer 3 is malfunctioning, the indicator lamp 36 lights up in orange. Therefore, while driving from the driver's seat, the driver can determine whether the ABS on the tractor side is malfunctioning by checking the lit color of the indicator lamp 36.
You can find out whether the ABS on the trailer side is malfunctioning or whether there is no ABS5 on the trailer side.

However, in this embodiment, if the combined vehicle indicator lamp 36 lights up in a state where a failure of the tractor anti-skid brake control device 4 and a failure of the trailer anti-skid brake control device 5 occur at the same time, the red and orange The colors are mixed together, making it difficult to identify them by color.

In this way, according to this embodiment, it becomes possible to easily and more reliably know the failure of the tractor ABS, the failure of the trailer ABS, and the presence or absence of the trailer ABS with a small number of indicator lamps.

Since the number of indicator lamps is reduced, the installation space for the indicator lamps on the instrument panel of the driver's seat can be reduced.

In the embodiments shown in FIGS. 12 and 13, the ABS failure location can also be displayed in a blinking pattern according to a predetermined code.

(Effects of the Invention) As is clear from the above description, according to the display device for the anti-skid brake control device in a coupled vehicle according to the present invention, the same failure display means can indicate the failure of each anti-skid brake control device of the tractor and the trailer. The location of the failure can be displayed. Therefore, it becomes possible to easily and clearly identify which vehicle's anti-skid brake control device is malfunctioning and which part of the anti-skid brake control device is malfunctioning.

In addition, the presence or absence of a trailer's anti-skid brake control device and the failure of the trailer's anti-skid brake control device are displayed in different colors using the same trailer indicator lamp, so a single trailer indicator lamp can indicate the presence or absence of an anti-skid brake control device. It is possible to easily and clearly identify whether there is a skid brake control device or whether the trailer's antiskid brake control device is malfunctioning. In particular, displaying by color can greatly improve identifiability.

Furthermore, the failure of the tractor's anti-skid brake control device, the failure of the trailer's anti-skid brake control device, and the presence or absence of the trailer's anti-skid brake control device are displayed in different colors using the same connected vehicle display lamp. The indicator lamp for the connected vehicle indicates that the anti-skid brake control device for the tractor or vehicle is malfunctioning.
It is possible to easily and clearly identify the failure of the anti-skid brake control device of the trailer and the presence or absence of the anti-skid brake control device. In this case as well, identifiability can be greatly improved by displaying by color.

Further, as described above, since two types of content can be displayed in a distinguishable manner using the same display means, the number of display means such as display lamps can be reduced. Therefore, the number of parts can be reduced and the installation space can be reduced.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram schematically showing an anti-skid brake control device to which an embodiment of the failure display device for an anti-skid brake control device according to the present invention is applied, and FIG. 2 is an electrical wiring diagram of the anti-skid brake control device. Figure 3 is a diagram showing the indicator lamp and failure indicator lamp, Figure 4 is a diagram showing the relationship between lamp lighting and display contents, Figure 5 is a diagram showing the code representing the flashing pattern of the failure lamp, Figure 6 is an explanatory diagram for flashing the failure indicator lamp when two or more codes are set, and Figure 7 is for tractor side AB.
FIG. 8 is a diagram showing the failure point display pattern of the trailer side ABS. FIG. 9 is a diagram showing the failure point display pattern of the trailer side ABS and the failure point display pattern of the tractor side ABS. , FIG. 10 is a diagram showing a flow for displaying a failure location in the controller on the tractor side, FIG. 11 is a diagram showing a flow for displaying a failure location in the controller on the trailer side, and FIG. Diagrams showing other embodiments, 1st
FIG. 3 is a diagram showing still another embodiment of the present invention. BS failure indicator lamp, 39...Trailer info

Claims (1)

[Claims] (1) Display pattern setting that sets a failure location display pattern corresponding to the failure location of each anti-skid brake control device of the tractor and trailer and a vehicle identification display pattern that indicates either the tractor or the trailer. means for detecting a failure of the anti-skid brake control device on the tractor side and its failure location, and detecting the vehicle identification display pattern set by the display pattern setting means and the failure location display pattern corresponding to the failure location. a control means for outputting a failure indication signal according to the above; and a control means for detecting a failure of the anti-skid brake control device on the trailer side and its failure location, and detecting the vehicle identification display pattern and its failure location set by the display pattern setting means; a control means for outputting a failure indication signal according to the failure point display pattern corresponding to the failure location display pattern; and a failure indication signal output from at least one of the two control means to indicate a failure of the anti-skid brake control device. A connection comprising: a failure display means; and an operation means for starting display of the failure location; and by operating the operation means, each of the control means causes the failure display means to display according to the display pattern. Display device for anti-skid brake control device in vehicle (2) The control means for outputting a failure indication signal of the anti-skid brake control device on the tractor side first displays the failure location of the anti-skid brake control device on the trailer side. The connection according to control 1, characterized in that the connection is set to display the failure location of the anti-skid brake control device on the tractor side after the failure display of the anti-skid brake control device on the trailer side is displayed on the means. A display device for an anti-skid brake control device in a vehicle. (3) The failure indication means is a failure indication lamp, and the failure indication pattern and the vehicle identification indication pattern are blinking patterns of the failure indication lamp, and each of the control means detects the failure according to this blinking pattern. 3. A display device for an anti-skid brake control device in a coupled vehicle according to claim 1 or 2, characterized in that a display lamp blinks. (4) The display device for an anti-skid brake control device in a coupled vehicle according to any one of claims 1 to 3, wherein the operating means for displaying the failure location is a brake pedal. (5) Tractor failure display control means that detects a failure in the anti-skid brake control device of the tractor and outputs a failure indication signal; and detects a failure of the anti-skid brake control device on the trailer side and outputs a failure indication signal. a trailer failure display control means; an anti-skid brake control device presence/absence display control means for detecting the absence of an anti-skid brake control device on the trailer and outputting an anti-skid brake control device non-display signal; and the tractor failure display control means. a tractor indicator lamp that lights up in response to a failure indication signal from the trailer failure indication control unit; and a tractor indicator lamp that lights up in response to a failure indication signal from the trailer failure indication control unit, and the antiskid brake control device from the antiskid brake control device presence/absence indication control unit and a trailer indicator lamp that lights up in response to a no-indication signal, the trailer indicator lamp indicating in a first color a failure of the anti-skid control device of the trailer, and that the trailer does not have an anti-skid brake control device. 1. A display device for an anti-skid brake control device in a coupled vehicle, comprising a two-color lamp that displays a second color. (6) Tractor failure display control means that detects a failure in the anti-skid brake control device of the tractor and outputs a failure indication signal; and detects a failure of the anti-skid brake control device on the trailer side and outputs a failure indication signal. a trailer failure display control means; an anti-skid brake control device presence/absence display control means for detecting that the trailer does not have an anti-skid brake control device and outputting an anti-skid brake control device non-display signal; and the tractor failure display control means. The light is turned on by a failure indication signal from the trailer failure indication control means, and further by the anti-skid brake control device non-indication signal from the anti-skid brake control device presence indication control means. a combined vehicle indicator lamp that illuminates, the combined vehicle indicator lamp indicating in a first color a failure of the anti-skid control device of the tractor, and a failure of the anti-skid brake control device of the trailer; A display device for an anti-skid brake control device in a coupled vehicle, comprising a two-color lamp that indicates a failure of the anti-skid control device of a trailer in a second color. (7) The display device for an anti-skid brake control device in a coupled vehicle according to claim 5 or 6, wherein the first color is red and the second color is orange.