JPH1086697A - Warning device for vehicle control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prohibit operation of a warning means in the condition to be intent on the operation of a vehicle by providing a judging means to judge whether an operator is to be intent on the operation or not. SOLUTION: An operator operating condition judgement input part (warning transmission control input part) 3 is constituted of a steering angle sensor 31 detecting the operating condition of a handle, a yaw rate sensor 32 detecting angular velocity at running on a curve or the like, and the like. When a control ECU 1 judges generation of abnormality in the system based on control input (output of an input part 81), for judging whether a warning signal is to be output to a warning part 2 or not, the operating condition (operation of a vihicle) of the operator is detected. The control ECU 1 judges the operating condition of the operator from the output of these sensors (31-36), and when the operator is in the condition to be intent on the operation, for example, in the condition of a large operating quantity of the operator against the time, it is prohibited to transmit the warning signal to the warning part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm device of a vehicle control system for issuing an alarm when an abnormality occurs in a vehicle, and more particularly to an alarm device when it is determined that the driver needs to concentrate on driving. The present invention relates to an alarm device of a vehicle control system capable of temporarily stopping the operation of the device.

[0002]

2. Description of the Related Art FIG. 7 is a system configuration diagram for explaining an alarm device of a conventional vehicle control system. Hereinafter, description will be made with reference to the drawings. A control ECU (electric control unit) based on an output from an input unit 81 composed of various sensors for monitoring the driving state of the vehicle and the like.
Reference numeral 1 controls an output amount to various vehicle devices such as an injection amount of an injector 91 of a vehicle, a shift position of a transmission 92, an advance amount of an igniter 93, and the like. When the control ECU 1 determines that an abnormality has occurred in the system such as a sensor, the control ECU 1 outputs a warning signal to a warning unit 2 including a buzzer, an indicator lamp, etc. to warn the driver.

For example, if a water temperature sensor or the like fails, control E
When the CU1 determines, the diagnostic lamp is lit to notify the user. Further, in addition to the engine control ECU described above,
An airbag ECU that deploys the airbag in the event of a collision and an ABS (Anti-Lock) that controls the slip ratio of the vehicle
A break system (ECU) or the like also activates an alarm (buzzer, lamp) when an abnormality is found in the system.

[0004]

In the conventional method, every time an abnormality occurs in the vehicle system, a warning is issued by displaying a lamp to a driver or the like. However, some warnings are of low urgency, not enough to stop the vehicle immediately, and of low importance, and the warning is issued only when the driver needs to concentrate on driving. Annoying for

According to the present invention, when it is determined that the driver needs to concentrate on driving, the operation of the alarm device can be temporarily stopped, and an alarm is issued when the driver has a psychological margin. It is an object of the present invention to provide an alarm device for a vehicle control system that can perform the alarm.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an abnormality detecting means for detecting that an abnormality has occurred in a control system of a vehicle, and an alarm in response to a detection result of the abnormality detecting means. An alarm device of a vehicle control system including an alarm control unit that controls an operation of an alarm unit to be performed.
A determination unit for determining whether or not the driver of the vehicle is in a state in which the driver should concentrate on driving based on an operation state of the vehicle; and the alarm control unit determines a state in which the driver should concentrate on the driving by the determination unit. Is detected, the operation of the warning means is prohibited.

[0007] The determining means may include an operation amount detecting means for detecting an operation amount of the driver performed on the vehicle,
When the amount of operation on the vehicle detected by the operation amount detecting means is equal to or greater than a predetermined value, it is determined that the driver is in a state in which the driver should concentrate on driving. Further, the operation amount detecting means includes a steering angle sensor for detecting a steering angle, a yaw rate sensor for detecting an angular velocity, a throttle opening degree sensor for detecting an open / closed state of an accelerator, an acceleration sensor for detecting acceleration and deceleration, and a vehicle path. It is characterized by comprising a turn signal switch for indicating a change, a vehicle speed sensor for detecting the speed of the vehicle, a brake switch for detecting the state of the brake, and the like.

[0008] The determining means may include a surrounding vehicle situation detecting means for detecting a situation of a surrounding vehicle of the vehicle, and the surrounding vehicle is approaching the vehicle based on the detecting situation of the surrounding vehicle situation detecting means. Sometimes, it is determined that the driver is in a state to concentrate on driving. Further, the peripheral vehicle situation detecting means is an image processing device that recognizes an inter-vehicle distance with a vehicle traveling in front of, behind, or on the side of the vehicle.

Further, the surrounding vehicle condition detecting means is a radar device for measuring an inter-vehicle distance with a vehicle traveling in front of, behind, or on the side of the vehicle. Further, the determining means includes a peripheral road condition detecting means for detecting a peripheral road condition of the vehicle, and when the peripheral road condition of the vehicle detected by the peripheral road condition detecting means is a specific road environment, It is characterized in that the driver is determined to be in a state in which he should concentrate on driving.

[0010] The peripheral road condition detecting means detects a road condition such as a curvature of a curve, an intersection, a railroad crossing or the like on a traveling route of the vehicle based on a current position of the vehicle and map information stored in advance. It is characterized by being a device. A storage unit for storing the alarm time and the content of the abnormality, wherein the alarm control unit stores the alarm time and the content of the abnormality in the storage unit when the operation of the alarm unit is prohibited; When the prohibition of operation is released or when a predetermined instruction input signal is detected, the alarm time and the content of the abnormality stored in the storage means are read out and output to the alarm means or an external display device. It is assumed that.

[0011] Further, a plurality of vehicle control systems are provided, and a plurality of alarm means for respectively issuing an alarm in response to an alarm signal output from each of the control systems are provided. An alarm of a vehicle control system including: an abnormality detection unit that detects that an abnormality has occurred in the system; and an alarm control unit that controls an operation of an alarm unit corresponding to the control system in accordance with a detection result of the abnormality detection unit. In the device, based on the operation status of the vehicle, a determination unit that determines that the driver of the vehicle is in a state in which the driver should concentrate on driving, and the determination unit determines that the driver is in a state in which the driver should concentrate on driving. When it detects that
An alarm transmission prohibiting means for integrally prohibiting the output of the alarm signal by each of the alarm control means is provided.

[0012] Further, a plurality of vehicle control systems are provided, and a plurality of alarm means for issuing an alarm in response to an alarm signal output from each of the control systems are provided. An alarm of a vehicle control system including: an abnormality detection unit that detects that an abnormality has occurred in the system; and an alarm control unit that controls an operation of an alarm unit corresponding to the control system in accordance with a detection result of the abnormality detection unit. In the device, based on the operation status of the vehicle, a determination unit that determines that the driver of the vehicle is in a state in which the driver should concentrate on driving, and the determination unit intervenes between each of the control systems and each of the alarm units. If it detects that the driver is in a state where he should concentrate on driving,
An alarm transmission prohibiting means is provided for integrally prohibiting an alarm signal output from each of the control systems from being sent to each of the alarm means.

Further, the alarm control means prohibits the operation of the alarm means only for the contents of low importance to be alarmed in accordance with the contents of the abnormality of the control system. is there.

[0014]

FIG. 1 is a system configuration diagram for explaining an alarm device of a vehicle control system according to a first embodiment of the present invention. FIG. 2 is a flowchart of a warning transmission permission / prohibition process of the warning device of the vehicle control system according to the first embodiment of the present invention. Hereinafter, description will be made with reference to the drawings. In this example, the operation status of the driver is determined based on the outputs of various sensors, and the alarm is temporarily stopped when the driver is in a state where he should concentrate on driving. The control system according to the present embodiment includes an input unit (detection unit) 8
1, includes a control ECU 1, an external load 9 (91 to 93), and an alarm unit 2. A CPU in the control ECU 1, which will be described later, performs normal vehicle control processing, abnormality detection processing, and alarm control processing.

1 is based on an output from an input unit 81 composed of various sensors for monitoring the driving state of the vehicle, etc.
A control ECU (Electric Control Unit) that controls the output amount of various vehicle devices such as the injection amount of the injector 91 of the vehicle, the shift position of the transmission 92, and the advance angle of the igniter 93 by PU processing. When the control ECU 1 determines that an abnormality has occurred in the system such as a sensor by the CPU processing, the control ECU 1 outputs an alarm signal to an alarm unit 2 including a buzzer, an indicator light, and the like to warn the driver. For example, when the control ECU 1 determines that the water temperature sensor or the like has failed, a diagnostic lamp is turned on to notify the user. Further, in addition to the engine control system ECU as described above, an airbag ECU that deploys the airbag in the event of a collision, and an ABS (Anti-Lock Blake S) that controls the slip ratio of the vehicle.
system) The ECU or the like also activates an alarm (buzzer, lamp) when an abnormality is found in the system.

The control ECU 1 of this embodiment has a CPU inside.
(Central processing unit), ROM (read only memory) and R
An AM (random access memory) is provided, and the CPU outputs a warning signal to the warning unit 2 based on the output of the driver operation status judgment input unit (warning transmission control input unit) 3 (warning transmission permission) (whether warning transmission is prohibited). ) Is also determined. A sensor for monitoring the system and a driver operation status judgment input unit 3
Some sensors are shared. In this case, in this example, the input unit includes an engine speed sensor, an intake air amount sensor, an oxygen sensor, a knocking sensor, an idle valve opening sensor, a water temperature sensor, and the like. From the value detected by the vehicle speed sensor 34, the output amount to the above-described engine control system device is controlled.

3 is a control input from the control ECU 1 (input unit 81).
To determine whether or not to output an alarm signal to the alarm unit 2 when it is determined that an abnormality has occurred in the system based on the output of the driver. Operation status judgment input unit (alarm transmission control input unit)
The steering angle sensor 31, which detects the operation state of the steering wheel,
Yaw rate sensor 3 for detecting the angular velocity when traveling on a curve
2. Throttle opening sensor 3 for detecting accelerator condition
3. It comprises a vehicle speed sensor 34 for detecting the speed of the vehicle, a G sensor 35 for detecting the degree of acceleration / deceleration, a turn signal switch 36 for detecting an intention display such as right turn / left turn / lane change. Control E from the output of these sensors (31 to 36)
The CU 1 determines the operation status of the driver, and prohibits transmission of the alarm signal to the alarm unit 2 when the driver must concentrate on driving, for example, when the operation amount of the driver with respect to time is large. .

Next, an example of an alarm transmission permission / inhibition process performed by the CPU of the control ECU 1 will be described with reference to a flowchart. In step S1, it is determined whether or not a warning request has been made. If there is a request, the process proceeds to step S2, and if not, the process ends. That is, it is determined whether a sensor (control input) installed in the vehicle detects an abnormality and the control ECU 1 determines that it is necessary to issue an alarm. This is the same process as the conventional alarm device.

In step S2, it is determined whether or not the steering angle is 45 ° or more.
1 and if it is less than 45 °, the process proceeds to step S3. That is, based on the output of the steering angle sensor 31, it is determined whether or not the driver has turned the steering wheel largely (for example, while traveling on a sharp curve, turning right or left). Step S
In 3, it is determined whether or not the vehicle speed is 60 km / h or more.
If it is less than km / h, the process moves to step S5. Step S
In step 4, it is determined whether the steering angle is 30 ° or more, and
If it is 0 ° or more, the process proceeds to step S11. If it is less than 30 °, the process proceeds to step S5. That is, the steering angle sensor 31
Based on the output of the vehicle speed sensor 34, it is determined whether or not the driver is performing an operation of traveling on a curve at a high speed even if the steering angle is slightly small.

In step S5, the yaw rate is 15 ° /
It is determined whether or not it is equal to or more than s. If it is 15 ° / s or more, the process proceeds to step S11. If it is less than 15 ° / s, the process proceeds to step S6. That is, based on the output of the yaw rate sensor 32, it is determined whether or not the driver is performing an operation such as running on a sharp curve. In step S6, it is determined whether or not the opening of the throttle valve is 50 ° or more. If it is 50 ° or more, the process proceeds to step S11. If it is less than 50 °, the process proceeds to step S7. That is, the throttle opening sensor 3
It is determined whether or not the driver has depressed the accelerator on the basis of the output of (3). If the accelerator pedal is depressed, the vehicle will eventually be accelerated and run at high speed.

In step S7, the acceleration is 0.5G (G
Is greater than or equal to gravitational acceleration), and if it is 0.5 G or more, the process proceeds to step S11. If it is less than 0.5G, the process proceeds to step S8. That is, the driver puts the vehicle in a state of rapid acceleration based on the output of the G sensor 35 (for example,
It is determined whether the accelerator pedal is depressed, a steep downhill running, or the like is performed. In step S8, it is determined whether or not the deceleration is 0.5G or more. If the deceleration is 0.5G or more, the process proceeds to step S11. If the deceleration is less than 0.5G, the process proceeds to step S9. That is, based on the output of the G sensor 35, it is determined whether or not the driver has stepped on the sudden brake to bring the vehicle into a state of rapid deceleration (for example, a state of stepping on the sudden brake). The determination can be made based on the state of the brake lamp instead of the G sensor 35 (however, the deceleration cannot be defined by a numerical value).

In step S9, it is determined whether the vehicle speed is 60 km / h or more. If the vehicle speed is 60 km / h or more, the process proceeds to step S10. If the vehicle speed is less than 60 km / h, the process proceeds to step S12. In step S10, it is determined whether or not the turn signal switch 36 is turned on. If the turn signal switch 36 is on, the process proceeds to step S11. If not, the process proceeds to step S1.
Move to 2. That is, it is determined based on the outputs of the vehicle speed sensor 34 and the turn signal switch 36 whether or not the driver intends to turn right, left, or change lanes at a high speed. In addition, based on the state of the light switch in addition to the turn signal switch 36,
A driving situation such as driving at night or running in a tunnel may be added as a judgment input.

In step S11, an alarm transmission permission counter is set to 0, and the flow advances to step S12. Step S
In step 12, it is determined whether 5 seconds or more have elapsed since the alarm transmission permission counter was set to 0. If 5 seconds or more have elapsed, the process proceeds to step S12, and if less than 5 seconds, step S1 is performed.
Move to 3. This counter keeps counting at all times, and is set to 0 when the driver performs the above operation. That is, the time during which all the operations described above are not continuously performed is measured. In other words, steps S11 and S12 are for judging whether or not five seconds or more have passed after the driver's nervous driving state has ended, and the driver is ready to drive.

In step S13, the transmission of the alarm is prohibited, and the process ends. That is, since the time has not yet elapsed since the safe state (the state of tension continues), the warning transmission is prohibited so that the troublesome warning is temporarily suspended so that the driver can concentrate on driving. . Step S14
Then, the transmission of the alarm is permitted, and the process ends. That is, since a sufficient time has elapsed since the safe state was reached, and the driver has enough time, the transmission of the alarm is permitted so that a necessary alarm is issued.

The control ECU 1 has a RAM or EE
When the alarm is temporarily interrupted by providing a memory such as a PROM (ROM capable of holding data without a power supply), when the alarm content and time are stored and the alarm can be transmitted, the control ECU 1 On the other hand, when a predetermined instruction input signal (operation of a switch or setting of a predetermined input port to 0 level) by a driver or the like is received, the signal is read out and an alarm is displayed (or by voice). An external display device provided separately,
For example, it is displayed on a display or the like. This way,
If an abnormality occurs in the system while the warning transmission is prohibited, and the abnormality is subsequently resolved and the driver does not know the abnormality at that time, the abnormality time and details are retained. Know what happened. still,
Such alarm storage is also applicable to the second to fifth embodiments described later. Further, instead of uniformly prohibiting the transmission of the alarm, the control ECU 1 sets the urgency of the system abnormality,
Depending on the degree of importance, permission / prohibition of alarm transmission may be determined for each of the alarm devices included in the alarm unit 2. In this case, for example, the contents that should always be alerted (CPU abnormality, throttle opening sensor abnormality, etc.) and the less important contents (oxygen sensor abnormality, water temperature sensor abnormality, etc.) are divided into R in advance.
OM may be stored, and when an abnormality is detected, the content of the abnormality may be compared with the contents of the ROM to determine the importance.

As described above, in this embodiment, when the driver must concentrate on driving from the operating state of the vehicle, the transmission of the alarm is blocked, so that the driver is released from the troublesome alarm and the driver is driven. Can concentrate on FIG. 3 is a system configuration diagram for explaining an alarm device of the vehicle control system according to the second embodiment of the present invention. Hereinafter, description will be made with reference to the drawings. In this example, the surrounding vehicle information is obtained based on the output of a monitoring camera or radar of the vehicle, and the warning is temporarily stopped when the driver is in a state in which the driver should concentrate on driving. The control system according to the present embodiment includes an input unit (detection unit) 81, a control ECU
1, including an external load 9 (91 to 93) and an alarm unit 2, and a CPU in the control ECU 1 described later performs normal vehicle control processing, abnormality detection processing, and alarm control processing.

Reference numeral 1 denotes C based on an output from an input unit 81 composed of various sensors for monitoring the driving state of the vehicle and the like.
A control ECU (Electric Control Unit) that controls the output amount of various vehicle devices such as the injection amount of the injector 91 of the vehicle, the shift position of the transmission 92, and the advance angle of the igniter 93 by PU processing. When the control ECU 1 determines that an abnormality has occurred in the system such as a sensor by the CPU processing, the control ECU 1 outputs an alarm signal to an alarm unit 2 including a buzzer, an indicator light, and the like to warn the driver. For example, when the control ECU 1 determines that the water temperature sensor or the like has failed, a diagnostic lamp is turned on to notify the user. Further, in addition to the engine control system ECU as described above, an airbag ECU that deploys the airbag in the event of a collision, and an ABS (Anti-Lock Blake S) that controls the slip ratio of the vehicle.
system) The ECU or the like also activates an alarm (buzzer, lamp) when an abnormality is found in the system.

The control ECU 1 of this embodiment has a CPU inside.
(Central processing unit), ROM (read only memory) and R
An AM (random access memory) is provided, and the CPU outputs an alarm signal to the alarm unit 2 based on the output of the peripheral vehicle information input unit (alarm transmission control input unit) 4 (alarm transmission is permitted) or not (alarm transmission is prohibited). Is also determined. 4 is control EC
When U1 determines that an abnormality has occurred in the system based on the control input, in order to determine whether to output an alarm signal to the alarm unit 2, a peripheral vehicle information input unit (an alarm transmission control An input unit), a front monitoring camera and processing unit 41 of the vehicle, a rear monitoring camera and processing unit 4 of the vehicle
2, a vehicle side monitoring camera and processing unit 43, a vehicle front monitoring radar and processing unit 44, a vehicle rear monitoring radar and processing unit 45, a vehicle side monitoring radar and processing unit 46, and the like. 34 is a vehicle speed sensor 3 for detecting the speed of the vehicle
4. Based on the outputs (distance to the target vehicle) and the vehicle speed of these cameras and radars (41 to 46) and the vehicle speed, the control ECU 1 determines the surrounding vehicle conditions, and the driver must concentrate on driving. When there is a possibility that a collision may occur due to the relative approach to the target, the output of the alarm signal to the alarm unit 2 is shut off.

The operation is substantially the same as that of the first embodiment. For example, the alarm transmission prohibition condition for setting the counter corresponding to step S11 in FIG. 2 to 0 is, for example, the side monitoring camera of the vehicle and the processing unit 43 or the vehicle. When the side vehicle distance detected by the side monitoring radar and the processing unit 46 is within 1.5 m. The vehicle speed detected by the vehicle speed sensor 34 is 30 km / h
And the front vehicle distance detected by the front monitoring camera and processing unit 41 of the vehicle or the front monitoring radar and processing unit 44 of the vehicle is 10 m or less.

When the vehicle speed detected by the vehicle speed sensor 34 is 60 km / h and the front vehicle distance detected by the vehicle front monitoring camera and processing unit 41 or the vehicle front monitoring radar and processing unit 44 is 15 m or less. . The vehicle speed detected by the vehicle speed sensor 34 is 30 km / h
And the rear vehicle distance detected by the vehicle rear monitoring camera and processing unit 42 or the vehicle rear monitoring radar and processing unit 45 is 10 m or less. Then, when any one or more conditions are satisfied, the output of the alarm signal to the alarm unit 2 is shut off. In the above example, the vehicle speed detected from the vehicle speed sensor 34 is given as one of the conditions. However, at least the inter-vehicle distance detected from the front monitoring radar and the processing unit 44 or the front monitoring radar and the processing unit 45 may be used as a condition. Good.

The conditions for permitting alarm transmission are as described above.
It is assumed that all of the alarm transmission prohibition conditions are not satisfied for 5 seconds (corresponding to step S12 in FIG. 2). As described above, in the present embodiment, when the driver must concentrate on driving in a situation where the surrounding vehicle is dangerous, the warning transmission is blocked, so that the driver is released from the troublesome alarm and concentrates on driving. it can.

FIG. 4 is a system configuration diagram for explaining an alarm device of a vehicle control system according to a third embodiment of the present invention. Hereinafter, description will be made with reference to the drawings. In this example, the surrounding road conditions are determined based on the output of a navigation device that provides guidance on the traveling route of the vehicle, and the warning is temporarily stopped when the driver is in a state where he should concentrate on driving. The control system according to the present embodiment includes an input unit (detection unit) 81, a control ECU 1, an external load 9 (91 to 93), and an alarm unit 2. Further, a CPU in the control ECU 1 described later performs normal vehicle control processing, abnormal Perform detection processing and alarm control processing.

Reference numeral 1 denotes C based on an output from an input unit 81 composed of various sensors for monitoring the driving state of the vehicle and the like.
A control ECU (Electric Control Unit) that controls the output amount of various vehicle devices such as the injection amount of the injector 91 of the vehicle, the shift position of the transmission 92, and the advance angle of the igniter 93 by PU processing. When the control ECU 1 determines that an abnormality has occurred in the system such as a sensor by the CPU processing, the control ECU 1 outputs an alarm signal to an alarm unit 2 including a buzzer, an indicator light, and the like to warn the driver. For example, when the control ECU 1 determines that the water temperature sensor or the like has failed, a diagnostic lamp is turned on to notify the user. Further, in addition to the engine control system ECU as described above, an airbag ECU that deploys the airbag in the event of a collision, and an ABS (Anti-Lock Blake S) that controls the slip ratio of the vehicle.
system) The ECU or the like also activates an alarm (buzzer, lamp) when an abnormality is found in the system.

The control ECU 1 of this embodiment has a CPU inside.
(Central processing unit), ROM (read only memory) and R
An AM (random access memory) is provided, and the CPU outputs an alarm signal to the alarm unit 2 based on the output of the peripheral road information input unit (alarm transmission control input unit) 5 (alarm transmission is permitted) or not (alarm transmission is prohibited). Is also determined. In this example, the navigation ECU 5 determines whether or not to output the warning signal to the warning unit 2 (permits the transmission of the warning) (prohibits the transmission of the warning), and the control ECU 1 does not perform the determination.

Numeral 5 is a navigation system for detecting surrounding road conditions in order to determine whether or not to output an alarm signal to the alarm unit 2 when the control ECU 1 determines that an abnormality has occurred in the system based on the control input. ECU 51 (alarm transmission control input unit 5). Reference numeral 34 denotes a vehicle speed sensor 34 for detecting the speed of the vehicle. The navigation ECU 51 determines the surrounding road conditions and determines that the driver has to concentrate on driving, for example, the vehicle is located in a specific road environment that the driver should pay attention to, such as before a railroad crossing. Then, an alarm transmission inhibition signal is output to the control ECU 1 so as to cut off the output of the alarm signal to the alarm unit 2.

The operation is substantially the same as that of the first embodiment. As a warning transmission prohibiting condition for setting the counter corresponding to step S11 in FIG. 2 to 0, for example, the vehicle speed detected by the vehicle speed sensor 34 is 60 km / h.
And when the navigation ECU 51 determines that the vehicle is within 200 m before the intersection where the signal is present. When the navigation ECU 51 determines that the vehicle is within 20 m before the railroad crossing.

During the route running, the navigation ECU
When it is determined that 51 is within 200 m before the intersection to be turned right or left. When traveling on a highway, the vehicle speed detected by the vehicle speed sensor 34 is 100 km / h, and the navigation ECU
The case 51 determines that the curve radius of the road is 600 m or less. Then, when any one or more conditions are satisfied, the driver must pay attention to the surrounding road conditions and concentrate on driving, so that the output of the alarm signal to the alarm unit 2 is shut off. Further, as other warning transmission prohibition conditions described above, it may be added that the vehicle is traveling on a narrow road at a high speed, near a junction of an expressway, and the like. In the above example, the vehicle speed detected by the vehicle speed sensor 34 is given as one of the conditions. However, at least a specific road environment detected by the navigation ECU 51 may be used as the condition.

The conditions for permitting alarm transmission are as described above.
It is assumed that all of the alarm transmission prohibition conditions are not satisfied for 5 seconds (corresponding to step S12 in FIG. 2). As described above, in the present embodiment, when the driver has to concentrate on driving while paying attention to the surrounding road conditions,
Since the transmission of the alarm is prevented, the driver is released from the troublesome alarm and can concentrate on driving.

FIG. 5 is a block diagram for explaining an alarm transmission control method of the alarm device of the vehicle control system according to the fourth embodiment of the present invention. Hereinafter, description will be made with reference to the drawings. In this example, a control ECU 11 for controlling a system is described in order to explain a warning transmission control method when a plurality of control ECUs are provided.
-13 and alarm transmission EC for instructing permission / prohibition of alarm transmission
The operation is shared by U18.

Reference numerals 11 to 13 denote a plurality of control ECUs for controlling the system. For example, 11 denotes an engine control ECU, which controls the injection amount of the injector based on a signal from the input unit 81.
The external load 901 is controlled. 12 is ABSE
The CU controls an external load 902 such as a brake oil pressure based on a signal from the input unit 81. Reference numeral 13 denotes an airbag ECU that ignites the squib 903 as an external load based on a signal from the input unit 81 to deploy the airbag. Here, in this example, the determination of permission / prohibition of the warning transmission is not performed as in the control ECUs 11 to 13 in the first to third embodiments, and the respective alarm devices 21 to 21 start receiving the signal from the warning transmission ECU 18. 23 in that it operates. Reference numeral 18 denotes permission of transmission of an alarm to the control ECUs 11 to 13 /
A warning transmission ECU that outputs a prohibition signal. Based on information from a driver operation status input unit 3, a surrounding vehicle information input unit 4, and a surrounding road information input unit 5, a warning signal when a system abnormality occurs is generated by the control ECUs 11 to 13. It is determined whether or not to transmit.

The information from the control transmission control input units (3 to 5) is input to the alarm transmission ECU 18, and the alarm transmission ECU 18
Sends a warning transmission prohibition signal to each of the control ECUs 11 to 13 collectively, and prohibits the control ECUs 11 to 13 from issuing a warning to the corresponding alarm devices 21 to 23, respectively. As described above, in the present embodiment, the control ECU is a conventional ECU,
There is almost no need to change the system just by providing the alarm transmission ECU. Also, since the warning transmission prohibition signal is issued collectively,
Even if the number of control ECUs increases, it is possible to cope with the conventional system configuration.

FIG. 6 is a block diagram for explaining an alarm transmission control method of the alarm device of the vehicle control system according to the fifth embodiment of the present invention. Hereinafter, description will be made with reference to the drawings. In this example, a control ECU 11 for controlling a system is described in order to explain a warning transmission control method when a plurality of control ECUs are provided.
-13 and alarm transmission EC for instructing permission / prohibition of alarm transmission
The function is shared by U19. The same components as those in the fourth embodiment are denoted by the same reference numerals.

Reference numeral 19 denotes an alarm transmission ECU for instructing permission / prohibition of transmission of alarms to the alarms 21 to 23. Based on this, it is determined whether or not an alarm signal when a system abnormality has occurred is transmitted to the alarm devices 21 to 23.
The alarm signals output from the control ECUs 11 to 13 are input to the alarm transmission ECU 19, and the alarm transmission ECU 19 collectively outputs the alarm signals to the alarm devices 21 to 23 based on the input from the control transmission control input units (3 to 5). Is prohibited.
That is, the transmission of the alarm signal is cut off.

As described above, in this embodiment, the control ECU is the same as the conventional one, and there is almost no need to change the system only by providing the alarm transmission ECU. Further, since the alarm transmission prohibition signal is issued collectively, even if the number of control ECUs increases, it is possible to cope with the conventional system configuration. It should be noted that the present invention is not limited to the above-described control ECU, but may be applied to any ECU that controls and alerts other vehicle devices.

[0045]

As described above, according to the present invention, when it is determined that the driver needs to concentrate on driving, the operation of the alarm device can be temporarily stopped, so that the driver is not bothered. You can concentrate on driving.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram for explaining an alarm device of a vehicle control system according to a first embodiment of the present invention.

FIG. 2 is a flowchart of an alarm transmission permission / inhibition process of the alarm device of the vehicle control system according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating a system configuration of an alarm device of a vehicle control system according to a second embodiment of the present invention.

FIG. 4 is a diagram for explaining a system configuration of an alarm device of a vehicle control system according to a third embodiment of the present invention.

FIG. 5 is a block diagram for explaining an alarm transmission control method of an alarm device of a vehicle control system according to a fourth embodiment of the present invention.

FIG. 6 is a block diagram for explaining an alarm transmission control method of an alarm device of a vehicle control system according to a fifth embodiment of the present invention.

FIG. 7 is a diagram for explaining a system configuration of a warning device of a conventional vehicle control system.

[Explanation of symbols]

1 ··· control ECU, 2 ··· alarm unit, 3 ··· driver operation status determination input unit, 4 ···
Peripheral vehicle information input section, 5 ...
18, 19 ... warning transmission ECU, 31 ... steering angle sensor, 34 ... vehicle speed sensor, 32
... Yaw rate sensor, 35 ... G sensor, 33 ... Throttle opening degree sensor, 36 ...
Turn signal switch.

Claims (12)

[Claims] 1. A vehicle comprising: abnormality detection means for detecting that an abnormality has occurred in a control system of a vehicle; and alarm control means for controlling operation of an alarm means for issuing an alarm in accordance with a detection result of the abnormality detection means. An alarm device of a control system, comprising: a determination unit configured to determine whether a driver of the vehicle is in a state in which the driver should concentrate on driving based on an operation state of the vehicle. Detecting that the vehicle is in a state in which it is necessary to concentrate on driving, the operation of the alarm means is prohibited. 2. The method according to claim 1, wherein the determining unit includes an operation amount detection unit that detects an operation amount of the vehicle performed by the driver, and the operation amount of the vehicle detected by the operation amount detection unit is equal to or more than a predetermined amount. 2. The alarm device for a vehicle control system according to claim 1, wherein it is determined that the driver is in a state to concentrate on driving. A steering angle sensor for detecting a steering angle, a yaw rate sensor for detecting an angular velocity, a throttle opening degree sensor for detecting an open / closed state of an accelerator, an acceleration sensor for detecting acceleration and deceleration, 3. An alarm device for a vehicle control system according to claim 2, further comprising a turn signal switch for indicating a change in the course of the vehicle, a vehicle speed sensor for detecting a speed of the vehicle, a brake switch for detecting a brake state, and the like. 4. The vehicle according to claim 1, wherein the determining unit includes a surrounding vehicle state detecting unit configured to detect a state of the surrounding vehicle of the vehicle, and the surrounding vehicle is approaching the vehicle based on the detection state of the surrounding vehicle state detecting unit. 2. The alarm device for a vehicle control system according to claim 1, wherein the driver is determined to be in a state where the driver should concentrate on driving. 5. The vehicle according to claim 4, wherein the peripheral vehicle situation detecting means is an image processing device that recognizes an inter-vehicle distance with a vehicle traveling in front, behind, or side of the vehicle. Control system alarm device. 6. The vehicle control system according to claim 4, wherein said surrounding vehicle condition detecting means is a radar device for measuring an inter-vehicle distance with a vehicle traveling forward, behind, or laterally of said vehicle. System alarm device. 7. The determining means includes a surrounding road condition detecting means for detecting a surrounding road condition of the vehicle, and the surrounding road condition of the vehicle detected by the surrounding road condition detecting device is a specific road environment. 2. The alarm device for a vehicle control system according to claim 1, wherein the driver is determined to be in a state where the driver should concentrate on driving. 8. The surrounding road condition detecting means, based on a current vehicle position and map information stored in advance, a curvature of a curve on a traveling route of the vehicle, an intersection,
The warning device for a vehicle control system according to claim 7, wherein the warning device is a navigation device that detects a road condition such as a railroad crossing. 9. An alarm control means for storing an alarm time and an error content, wherein the alarm control means stores the alarm time and the error content in the storage means when the operation of the alarm means is prohibited. When the prohibition of the operation of the alarm unit is released or when a predetermined instruction input signal is detected, the alarm time and the content of the abnormality stored in the storage unit are read and output to the alarm unit or an external display device. The alarm device for a vehicle control system according to claim 1, wherein: 10. A vehicle control system comprising: a plurality of vehicle control systems; and a plurality of alarm means for issuing an alarm in response to an alarm signal output from each of the control systems. An alarm of a vehicle control system including: an abnormality detection unit that detects that an abnormality has occurred in the system; and an alarm control unit that controls an operation of an alarm unit corresponding to the control system in accordance with a detection result of the abnormality detection unit. In the apparatus, based on the operation status of the vehicle, a determination unit that determines that the driver of the vehicle is in a state in which the driver should concentrate on driving, and the determination unit determines that the driver is in a state in which the driver should concentrate on driving. And a warning transmission prohibiting means for integrally prohibiting the output of the warning signal by each of the warning control means when detecting that. Stem of the warning device. 11. A vehicle control system comprising: a plurality of vehicle control systems; and a plurality of alarm means for issuing an alarm in response to an alarm signal output from each of the control systems. An alarm of a vehicle control system including: an abnormality detection unit that detects that an abnormality has occurred in the system; and an alarm control unit that controls an operation of an alarm unit corresponding to the control system in accordance with a detection result of the abnormality detection unit. In the device, based on the operation status of the vehicle, a determination unit that determines that the driver of the vehicle is in a state where the driver should concentrate on driving, intervening between each of the control systems and each of the alarm units, When it is detected by the means that the driver is in a state in which the driver should concentrate on driving, an alarm signal output from each of the control systems is transmitted to each of the alarm means. An alarm device for a vehicle control system, comprising: an alarm transmission prohibiting unit for integrally controlling the prohibition of the vehicle. 12. The alarm control means for prohibiting the operation of the alarm means only for a low-priority content to be warned in accordance with the abnormality content of the control system. An alarm device for the vehicle control system according to claim 1.