JP2007022392A - Control method for occupant restraint device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accomplish control of an occupant restraint device matched to the circumstance where an occupant restriction means can be operated in consideration of the drive condition, the road condition and a traveling mode, by solving the problem wherein the occupant restriction means is operated independently of the drive condition, the road condition and the traveling mode. <P>SOLUTION: In the occupant restraint device provided with a vehicle speed detection means 12 for detecting a traveling vehicle speed of the vehicle; an operation amount detection means 18 for detecting a brake operation amount and/or a steering angle of the occupant and a steering speed; and a control part 11 for activating the occupant restriction means 30 based on information of the vehicle speed detection means 12 and the operation amount detection means 18, the control part 11 activates the occupant restriction means 30 when a value detected by the operation amount detection means 18 exceeds a predetermined threshold value, individually sets the threshold value according to a vehicle speed detected by the vehicle speed detection means 12 and selectively uses these threshold values. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an occupant restraint device for operating an occupant restraint device such as a seat belt in consideration of driving conditions such as vehicle speed, road conditions such as general roads and highways, and travel modes such as general travel and sports travel. It is related with the control method.

As a method for controlling an occupant restraint device, a method for operating an occupant restraint device such as a seat belt based on information from a vehicle speed sensor or an acceleration sensor is practically used.
Such an occupant restraint device control method is intended to protect an occupant by activating the occupant restraint device at the time of a vehicle collision.

As a control method for such an occupant restraint device, there is known a method for operating the occupant restraint device even when a vehicle collision is predicted (emergency) (see, for example, Patent Document 1).
JP 2004-322691 A (page 16, FIG. 1)

  FIG. 12 is a diagram for explaining a conventional basic configuration. The occupant restraint device 100 is provided with first and second pretensioners 111 and 112 that apply tension to the seat belt (webbing) 115 in the occupant restraint means 110. These first and second controllers 113 and 114 are provided for the pretensioners 111 and 112, respectively, and the first pretensioner 111 is operated in accordance with the operating state of the ABS (anti-lock brake system) to seat belts. The tension at the time of winding 115 is controlled, the second pretensioner 112 is operated in an emergency to apply tension to the seat belt 115, and the occupant 116 is finally restrained.

  However, in the control method of the occupant restraint device 100, the occupant restraint means 110 is operated according to the operating state of the ABS. For example, when the vehicle is traveling at a high speed or at a low speed, the ABS When is operated, the occupant restraint means 110 is operated uniformly, and there may be cases where it does not match the actual situation.

  Similarly, in the control method of the occupant restraint device 100, the occupant restraint means 110 is operated according to the operating state of the ABS. There was also a drawback that sometimes operated.

  In other words, the occupant restraint system should be operated in consideration of driving conditions such as vehicle speed, road conditions such as highways, roads with many curves (for example, mountain roads), roads with few curves, driving modes such as general driving and sports driving, etc. An occupant restraint device control method or an occupant restraint device that can perform the above is desired.

  The present invention solves the point that the occupant restraint means is operated regardless of driving conditions, road conditions (travel road conditions), travel modes, etc., and occupant restraint means in consideration of driving conditions, road conditions, travel modes, etc. It is an object of the present invention to provide a method for controlling an occupant restraint device or an occupant restraint device that is capable of operating the vehicle.

  The invention according to claim 1 includes vehicle speed detection means for detecting the traveling vehicle speed of the vehicle, and operation amount detection means for detecting the brake operation amount and / or steering angle and steering speed of the occupant, and this operation amount detection means. In the control method of the occupant restraint device that activates at least one reversible occupant restraint means when the value detected by the vehicle exceeds a predetermined threshold value, the threshold value corresponding to the vehicle speed detected by the vehicle speed detection means is individually set. It is characterized by setting and selectively using these threshold values.

  For example, if it is possible to operate the occupant restraint means in consideration of driving conditions, road conditions (travel road conditions), travel modes, etc., it is preferable because the occupant restraint device can be controlled in accordance with the actual situation. It is.

  Therefore, when the reversible occupant restraining means is activated when the value detected by the operation amount detecting means exceeds a predetermined threshold value, a threshold value corresponding to the vehicle speed detected by the vehicle speed detecting means is individually set. By selectively using these threshold values, for example, it is possible to distinguish when the vehicle speed is high speed, medium speed, and low speed, and to activate the reversible occupant restraint means according to the vehicle speed.

  The invention according to claim 2 includes a travel path recognition means for recognizing the travel path of the vehicle, and an operation amount detection means for detecting the brake operation amount and / or steering angle and steering speed of the occupant. In the control method of the occupant restraint device that activates at least one reversible occupant restraint means when the value detected by the means exceeds a predetermined threshold value, it depends on the condition of the travel path recognized by the travel path recognition means. Threshold values are individually set and these threshold values are selectively used.

  That is, when starting the reversible occupant restraint means when the value detected by the operation amount detection means exceeds a predetermined threshold value, the threshold value corresponding to the condition of the travel path recognized by the travel path recognition means is set. By individually setting and selectively using these thresholds, for example, when driving on a highway, driving on a road with a lot of curves (for example, a mountain road), driving on a road with a few curves When recognizing, the reversible occupant restraint means can be activated in accordance with road conditions (travel road conditions).

The invention according to claim 3 includes an operation amount recording unit that records a value detected by the operation amount detection unit, and corrects the threshold value selected according to the operation amount history recorded by the operation amount recording unit. Features.
An operation amount recording means for recording a value detected by the operation amount detection means is provided, and a reversible type in accordance with the actual situation is obtained by correcting the threshold value selected according to the operation amount history recorded by the operation amount recording means. The occupant restraint means can be activated.

  In the invention according to claim 1, when the reversible occupant restraining means is activated when the value detected by the operation amount detecting means exceeds a predetermined threshold, the threshold corresponding to the vehicle speed detected by the vehicle speed detecting means is established. Since the values are individually set and these threshold values are selectively used, for example, it is possible to distinguish when the vehicle speed is high speed, medium speed, and low speed, and to activate the reversible occupant restraint means according to the vehicle speed. it can. As a result, there is an advantage that the reversible occupant restraint means can be operated according to the actual situation.

  In the invention according to claim 2, when the reversible occupant restraining means is activated when the value detected by the operation amount detecting means exceeds a predetermined threshold value, For example, when driving on a highway, when driving on a road with many curves (for example, a mountain road) When the vehicle is traveling on a road with few curves, the reversible occupant restraint means can be activated according to the road condition (travel road condition). As a result, there is an advantage that the reversible occupant restraint means can be operated according to the actual situation.

  In the invention according to the third aspect, the operation amount recording means for recording the value detected by the operation amount detection means is provided, and the threshold value selected according to the operation amount history recorded by the operation amount recording means is corrected. There is an advantage that the reversible occupant restraint means can be activated in accordance with the actual situation.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a block diagram of an occupant restraint device according to the present invention. An occupant restraint device 10 includes an occupant restraint means 30 that restrains an occupant in an emergency or a collision, and a control unit 11 that controls the occupant restraint means 30. A vehicle speed sensor 12 as vehicle speed detection means for detecting vehicle speed and sending vehicle speed information to the control unit 11, a steering angle sensor 13 for detecting steering angle and sending steering angle information to the control unit 11, and an accelerator pedal operation An accelerator operation amount sensor 14 that detects the amount and transmits accelerator depression information to the control unit 11, a brake operation amount sensor 15 that detects a brake operation amount of the brake pedal and transmits brake depression information to the control unit 11, and a travel path A road that recognizes whether it is an expressway, a road with many curves (for example, a mountain road) or a road with few curves, and sends the road condition (the condition of the road) to the control unit 11 The identification means 17, consisting of.

  The travel path recognition means 17 is specifically a car navigation system. The vehicle speed sensor 12, the accelerator operation amount sensor 14, and the brake operation amount sensor 15 are collectively referred to as operation amount detection means 18.

  The control unit 11 includes information on vehicle speed determination means 19 that determines whether the vehicle speed detected by the vehicle speed sensor 12 is low speed, medium speed, or high speed, and information on the steering angle sensor 13, the accelerator operation amount sensor 14, or the brake operation amount sensor 15. Each operation speed is calculated from the information of the operation amount determination means 21 for determining whether the value detected from the vehicle exceeds a predetermined threshold and the steering angle sensor 13, the accelerator operation amount sensor 14 or the brake operation amount sensor 15. It is determined from the information of the operation speed calculation means 22 and the travel path recognition means means 17 whether the road being traveled is a highway, a road with many curves (for example, a mountain road), or a road with few curves. An operation for storing the operation amount detected by the travel path determination means 25 and the steering angle sensor 13, the accelerator operation amount sensor 14 or the brake operation amount sensor 15. Recording means 23, accelerator / brake frequency determining means 26 for determining whether or not the accelerator / brake operation frequency within the unit time exceeds the reference frequency based on the information of the accelerator operation amount sensor 14 and the brake operation amount sensor 15, and a steering angle sensor 13, threshold map correction means 24 for correcting the value of the threshold map selected from the information of the accelerator operation amount sensor 14 or the brake operation amount sensor 15.

  FIG. 2 is a front view of the occupant restraint means used in the control method of the occupant restraint apparatus according to the present invention. The occupant restraint means 30 is a reversible occupant restraint means, specifically a three-point seat belt device. A pretensioner 31 provided below the side of the vehicle body, a seat belt 32 provided with one end extending from the pretensioner 31, and an upper part provided above the side of the vehicle body for guiding the seat belt 32. To attach the tongue (belt metal fitting) 34 interposed between the seat belt guide 33 and the seat belt 32, the buckle 36 provided on the seat 35 side to attach the tongue 34 detachably, and the other end of the seat belt 32 And a seat belt anchor 37 provided below the side of the vehicle body. In the figure, reference numeral 38 denotes a vehicle floor, and 39 denotes an occupant.

The seat belt 32 is a shoulder belt 41 that passes from the pretensioner 31 through the shoulder of the occupant 39 to the waist, and is wrapped around the seat 35 substantially horizontally around the abdomen of the occupant 39 from the front end of the shoulder belt 41. Belt 42.
The seat (vehicle seat) 35 includes a seat cushion 44 that supports the waist and legs of the occupant 39 and a seat back 45 that supports the back of the occupant 39.

FIG. 3 is a flowchart of the control method for the occupant restraint device according to the first embodiment of the present invention (see FIG. 1 for symbols). STXX indicates a step number.
ST01: The vehicle speed sensor 12 measures the vehicle speed Vr.
ST02: The vehicle speed determination means 19 determines whether the vehicle speed Vr is a low speed, a medium speed, or a high speed. If the vehicle speed Vr is low, the process proceeds to ST03. If the vehicle speed Vr is medium, the process proceeds to ST04. If the vehicle speed Vr is high, the process proceeds to ST05.

ST03: When the vehicle speed Vr is low, the first threshold map (see FIG. 4) is selected.
ST04: When the vehicle speed Vr is medium, the second threshold map (see FIG. 4) is selected.
ST05: When the vehicle speed Vr is high, the third threshold map (see FIG. 4) is selected.
ST06: Steering angle θ is measured by steering angle sensor 13 when the steering angle θ is the angle at which steering is continuously performed in the same direction.

ST07: The operation speed calculation means 22 calculates (calculates) the steering speed Vθ from the steering angle θ.
ST08: The allowable steering angle θs is calculated from the steering speed Vθ using any one of the first to third threshold maps (see FIG. 4) selected when the vehicle speed is low, medium, or high in ST03 to ST05. Ask.

ST09: The operation amount determination means 21 determines whether the steering angle θ exceeds the allowable steering angle θs (θ> θs). If YES, the process proceeds to ST10, and if NO, the process returns to ST01.
ST10: The occupant restraint means 30 is activated.

FIG. 4 is a map showing threshold values used in the control method of the passenger restraint apparatus according to the first embodiment of the present invention (see FIG. 1 for reference numerals). The vertical axis indicates the steering speed Vθ, and the horizontal axis indicates the allowable steering angle θs.
The threshold map 50 includes a first threshold map 51 for low vehicle speed Vr, a second threshold map 52 for medium speed vehicle speed Vr, and a third threshold map for high vehicle speed Vr. 53, for example, when the control unit 11 determines that the vehicle speed Vr detected by the vehicle speed sensor 12 is a high speed, the third threshold value map 53 is used to determine the allowable steering angle from the steering speed Vθ1. θs1 is obtained.

  When the steering speed θ exceeds a certain speed, a certain allowable steering angle θs is used. Further, when the steering speed θ is lower than a certain speed, the allowable steering angle θs is configured to be always infinite for convenience, and the occupant restraint device 30 (see FIG. 2) for any steering angle θ. The start condition is not satisfied.

FIG. 5 is a flowchart of a control method for an occupant restraint device according to the second embodiment of the present invention (see FIG. 1 for the reference numerals). STxxx indicates a step number.
ST101: The vehicle speed sensor 12 measures the vehicle speed Vr.
ST102: The vehicle speed determination means 19 determines whether the vehicle speed Vr is a low speed, a medium speed, or a high speed. If the vehicle speed Vr is low, the process proceeds to ST103, if the vehicle speed Vr is medium speed, the process proceeds to ST104, and if the vehicle speed Vr is high, the process proceeds to ST105.

ST103: When the vehicle speed Vr is low, the first threshold map (see FIG. 6) is selected.
ST104: When the vehicle speed Vr is medium speed, the second threshold map (see FIG. 6) is selected.
ST105: When the vehicle speed Vr is high, the third threshold map (see FIG. 6) is selected.

ST106: When the brake stroke is Br, the brake operation amount sensor 15 measures the brake stroke Br.
ST107: The operation speed calculation means 22 calculates (calculates) the brake stroke speed VBr from the brake stroke Br.
ST108: The allowable brake stroke Bs is determined from the brake stroke speed VBr using any of the first to third threshold maps (see FIG. 6) selected when the vehicle speed is low, medium, or high in ST103 to ST105. Ask for.

ST109: The operation amount determination means 21 determines whether the brake stroke Br exceeds the allowable brake stroke Bs (Br> Bs). If YES, the process proceeds to ST110, and if NO, the process returns to ST101.
ST110: The occupant restraint means 30 is activated.

FIG. 6 is a map showing threshold values used in the control method for an occupant restraint device according to the second embodiment of the present invention (see FIG. 1 for symbols). The brake stroke speed VBr is shown, and the horizontal axis shows the allowable brake stroke Bs.
The threshold map 60 includes a first threshold map 61 for low vehicle speed Vr, a second threshold map 62 for medium speed vehicle speed Vr, and a third threshold map for high vehicle speed Vr. 63, for example, when the control unit 11 determines that the vehicle speed Vr detected by the vehicle speed sensor 12 is a high speed, the third threshold map 53 is used to determine the allowable brake from the brake stroke speed VBr1. The stroke Bs1 is obtained.

  In this embodiment, when the brake stroke speed VBr exceeds a certain speed, a certain allowable brake stroke Bs is used. Further, when the brake stroke speed VBr is lower than a certain speed, the allowable brake stroke Bs is configured to be always infinite for convenience, and the occupant restraint device 30 (see FIG. 2) for any brake stroke Br. ) Does not meet the activation conditions.

  From FIG. 3 to FIG. 6 (see FIG. 1 for signs), the occupant restraint device 10 determines the vehicle speed detection means (vehicle speed sensor) 12 that detects the traveling vehicle speed of the vehicle, and the occupant's brake operation amount and / or steering angle and steering speed. In an occupant restraint device including an operation amount detection means 18 to be detected and a control unit 11 that activates the occupant restraint means 30 based on information of the vehicle speed detection means 12 and the operation amount detection means 18, the control unit 11 includes: The occupant restraint means 30 is activated when the value detected by the operation amount determination means 21 exceeds a predetermined threshold value, and the threshold value is individually determined according to the vehicle speed detected by the vehicle speed detection means 12. It can be said that these threshold values are set and selectively used.

  That is, when the value detected by the operation amount detection means 18 exceeds a predetermined threshold value (reversible type), when the occupant restraint means 30 is activated, it corresponds to the vehicle speed detected by the vehicle speed detection means (vehicle speed sensor) 12. By setting the thresholds individually and selectively using these thresholds, for example, the vehicle speed is distinguished between high speed, medium speed, and low speed, and the occupant restraint means 30 is activated according to the vehicle speed. be able to. As a result, the occupant restraint means 30 can be operated according to the actual situation.

FIG. 7 is a main flowchart of a control method for an occupant restraint device according to the third embodiment of the present invention (see FIG. 1 for reference numerals). STxxx indicates a step number.
ST201: The road condition (travel condition) is read by the travel path recognition means 17.
ST202: The traveling road determination means 25 determines whether the traveling road is a highway, a road with a lot of curves (for example, a mountain road) or a road with a few curves. If it is a highway, the process proceeds to ST203, if it is a road with many curves, the process proceeds to ST204, and if it is a road with few curves, the process proceeds to ST205.

ST203: A first threshold map (see FIG. 4) is selected.
ST204: The accelerator / brake operation frequency data Nr / t1 recorded in the operation amount recording means 23 in advance is read. The time division process for obtaining the accelerator / brake operation frequency data Nr / t1 will be described later with reference to FIG.

ST205: A third threshold map (see FIG. 4) is selected.
ST206: The accelerator / brake frequency determining means 26 determines whether or not the accelerator / brake operation frequency data Nr / t1 exceeds the reference operation frequency Ns. If YES, the process proceeds to ST207, and if NO, the process proceeds to ST205.

  Generally, when the accelerator / brake operation frequency data Nr / t1 is large on a road with many curves (for example, a mountain road), it is determined that the driver consciously repeats the accelerator / brake operation and enjoys sports driving. The third threshold map is selected.

ST207: A second threshold map (see FIG. 4) is selected.
ST208: Steering angle θ is measured by steering angle sensor 13 when the steering angle θ is the angle at which steering is continuously performed in the same direction.
ST209: The operation speed calculation means 22 calculates the steering speed Vθ from the steering angle θ.

ST210: The allowable steering angle θs is calculated from the steering speed Vθ using any of the first to third threshold maps (see FIG. 4) selected when the vehicle speed is low, medium or high in ST203 to ST205. Ask.
ST211: The operation amount determination means 21 determines whether the steering angle θ exceeds the allowable steering angle θs (θ> θs). If YES, the process proceeds to ST212, and if NO, the process returns to ST201.
ST212: The occupant restraint means 30 is activated.

FIG. 8 is a sub-flowchart of the control method for the passenger restraint apparatus according to the third embodiment of the present invention, and shows a flow performed by the operation amount recording means 23 (time division process used in ST204 of FIG. 7). Note that STxx indicates a step number (see FIG. 1 for the symbol).
ST301: Start counting time.
ST302: The accelerator operation signal (the number of accelerator operations) is read from the information of the accelerator operation amount sensor 14.

ST303: A brake operation signal (number of brake operations) is read from the information of the brake operation amount sensor 15.
ST304: Count the number of accelerator / brake operations Nr. The accelerator / brake operation count Nr is counted as one when the accelerator pedal is depressed and the brake is depressed.

ST305: Has the fixed time t1 elapsed? If YES, the process proceeds to ST306, and if NO, the process returns to ST302.
ST306: Obtain accelerator / brake operation frequency data Nr / t1.
ST307: Rewrite the calculated accelerator / brake operation frequency data Nr / t1. This latest rewrite data is read in ST204 in FIG.

FIG. 9 is a map showing threshold values used in the control method for an occupant restraint device according to the third embodiment of the present invention (see FIG. 1 for symbols). The vertical axis indicates the steering speed Vθ, and the horizontal axis indicates the allowable steering angle θs.
The threshold map 70 includes a first threshold map 71 used when the road condition (travel road condition) is determined to be a highway by the travel path determination means 25, and a road condition is curved by the travel path determination means 25. The second threshold map 72 used when it is determined that there are many roads, and when the road condition determining unit 25 determines that the road condition is a road with few curves, or a road with many curves, and the accelerator / brake operation frequency And a third threshold value map 73 used when the determination means 26 exceeds the reference operation frequency Ns (see FIG. 7). For example, the road condition determination means 25 determines that the road condition is a highway. In this case, the first threshold map 71 is used to obtain the allowable steering angle θs2 from the steering speed Vθ2.

  When the steering speed θ exceeds a certain speed, a certain allowable steering angle θs is used. Further, when the steering speed θ is lower than a certain speed, the allowable steering angle θs is configured to be always infinite for convenience, and the occupant restraint device 30 (see FIG. 2) for any steering angle θ. The start condition is not satisfied.

  From FIG. 7 to FIG. 9 (see FIG. 1 for signs), the occupant restraint device 10 detects the travel path recognition means 17 for recognizing the travel path of the vehicle, and the brake operation amount and / or steering angle and steering speed of the occupant. In an occupant restraint device including an operation amount detection unit 18 and a control unit 11 that activates the occupant restraint unit 30 based on information of the travel path recognition unit 17 and the operation amount detection unit 18, the control unit 11 includes: The occupant restraint means 30 is activated when the value detected by the operation amount detection means 18 exceeds a predetermined threshold value, and the threshold value is determined according to the condition of the travel road recognized by the travel path recognition means 17. It can be said that these threshold values are selectively used and are selectively used.

  That is, when the value detected by the operation amount detection means 18 exceeds a predetermined threshold (reversible type) when the occupant restraint means 30 is activated, it corresponds to the condition of the travel path recognized by the travel path recognition means 17. For example, when driving on an expressway, when driving on a road with many curves (for example, a mountain road), the threshold is set individually. It is possible to recognize when the vehicle is traveling on a road with few roads, and to activate the occupant restraint means 30 according to the road conditions (travel road conditions). As a result, the occupant restraint means 30 can be operated according to the actual situation.

FIG. 10 is a flowchart of a control method for an occupant restraint device according to the fourth embodiment of the present invention (see FIG. 1 for reference numerals). STXX indicates a step number.
ST401: The vehicle speed sensor 12 measures the vehicle speed Vr.
ST402: The vehicle speed determination means 19 determines whether the vehicle speed Vr is a low speed, a medium speed, or a high speed. If the vehicle speed Vr is low, the process proceeds to ST403. If the vehicle speed Vr is medium, the process proceeds to ST404. If the vehicle speed Vr is high, the process proceeds to ST405.

ST403: When the vehicle speed Vr is low, the first threshold map (see FIG. 4) is selected.
ST404: When the vehicle speed Vr is medium, the second threshold map (see FIG. 4) is selected.
ST405: When the vehicle speed Vr is high, the third threshold map (see FIG. 4) is selected.

ST406: Steering angle θ is measured by steering angle sensor 13 when the steering angle θ is the angle at which steering is continuously performed in the same direction.
ST407: The operation speed calculation means 22 calculates (calculates) the steering speed Vθ from the steering angle θ.
ST408: The allowable steering angle θs is calculated from the steering speed Vθ using any of the first to third threshold maps (see FIG. 4) selected when the vehicle speed is low, medium, or high in ST03 to ST05. Ask.

ST409: As described with reference to FIG. 11, the corrected allowable operation angle θh is obtained by correcting the allowable operation angle θs based on the degree of change in the steering angle θ.
ST410: The operation amount determination means 21 determines whether the steering angle θ exceeds the correction allowable steering angle θh (θ> θh). If YES, the process proceeds to ST411, and if NO, the process returns to ST401.
ST411: The occupant restraint means 30 is activated.

FIG. 11 is a map showing correction values used in the control method for an occupant restraint device according to the fourth embodiment of the present invention. The correction allowable steering angle threshold θh performed by the threshold map correction means 24 shown in FIG. It is a graph which shows a calculation method.
As the corrected allowable steering angle threshold value θh, the allowable steering angle threshold value θs is obtained from the threshold value map 50 shown in FIG. 3, the steering angle average value θa is obtained from the change in the steering angle θ, and the allowable steering angle threshold value is obtained. Correction according to the steering angle average value θa curve is added to θs.

10 and 11 (refer to FIG. 1 for the reference numerals), the occupant restraint device 10 is provided with an operation amount recording means 23 for recording a value detected by the operation amount detection means 18 in the control unit 11, and this operation amount recording means. It can be said that the correction value obtained by correcting the threshold value selected in accordance with the operation amount history recorded in step 23 is used.
In other words, an operation amount recording unit 23 for recording a value detected by the operation amount detection unit 18 is provided, and the threshold value selected according to the operation amount history recorded by the operation amount recording unit 23 is corrected, so that the actual situation is further improved. (Reversible type) occupant restraint means 30 can be activated.

  As shown in FIG. 3, the control method of the occupant restraint device according to the present invention obtains and controls the allowable steering angle θs by distinguishing the vehicle speed from low speed, medium speed, and high speed, and as shown in FIG. Is distinguished from low speed, medium speed, and high speed, and the allowable brake stroke speed Vs is obtained and controlled. As shown in FIG. 7, the road conditions (travel road conditions) are distinguished into highways, mountain roads, and general roads, and allowable steering angles are distinguished. As shown in FIG. 10, control is performed by obtaining θs, and the permissible steering angle θs is obtained by distinguishing the vehicle speed from low speed, medium speed, and high speed, and the permissible steering angle θs is corrected to obtain the corrected permissible steering angle θh. However, the present invention is not limited to this, and these controls may be combined as appropriate.

  In the control method of the passenger restraint apparatus according to the present invention, three threshold values are set in the threshold maps 50, 66, and 70 in FIGS. 4, 6, and 8, but the present invention is not limited to this. It may be configured such that the threshold value changes continuously in response to this, and does not prevent the increase or decrease as appropriate.

  In the control method of the passenger restraint apparatus according to the present invention, the accelerator / brake frequency determining means 26 determines whether or not the accelerator / brake operation frequency data Nr / t1 exceeds the reference operation frequency Ns in FIG. In this case, the setting is not limited to using only the operation frequency. For example, when the operation frequency is counted, an operation amount condition (accelerator depression amount or brake depression amount, etc.) is set, and the operation amount condition May be added. That is, operations that do not satisfy the predetermined condition may not be counted.

  As shown in FIG. 2, the occupant restraint device control method according to the present invention is a seat belt device. However, the present invention is not limited to this, and the occupant restraint device is also applicable to a movable headrest, a movable seat, and the like. It does not prevent it.

  The control method for an occupant restraint device according to the present invention is suitable for use in a passenger car such as a sedan or a wagon.

It is a block diagram of a crew member restraint device concerning the present invention. It is a front view of the passenger | crew restraint means used with the control method of the passenger | crew restraint apparatus which concerns on this invention. It is a flowchart of the control method of the passenger | crew restraint apparatus of 1st Embodiment which concerns on this invention. It is a map which shows the threshold value used for the control method of the passenger | crew restraint apparatus of 1st Embodiment which concerns on this invention. It is a flowchart of the control method of the passenger | crew restraint apparatus of 2nd Embodiment which concerns on this invention. It is a map which shows the threshold value used for the control method of the passenger | crew restraint apparatus of 2nd Embodiment which concerns on this invention. It is a main flowchart of the control method of the crew member restraint device of a 3rd embodiment concerning the present invention. It is a sub-flowchart of the control method of the crew member restraint device of a 3rd embodiment concerning the present invention. It is a map which shows the threshold value used for the control method of the passenger | crew restraint apparatus of 3rd Embodiment which concerns on this invention. It is a flowchart of the control method of the passenger | crew restraint apparatus of 4th Embodiment which concerns on this invention. It is a map which shows the correction value used for the control method of the passenger | crew restraint apparatus of 4th Embodiment which concerns on this invention. It is a figure explaining the conventional basic composition.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Passenger restraint apparatus, 11 ... Control part, 12 ... Vehicle speed detection means (vehicle speed sensor), 17 ... Traveling path recognition means, 18 ... Operation amount detection means, 21 ... Operation amount judgment means, 23 ... Operation amount recording means, 30 ... occupant restraint means.

Claims (3)

Vehicle speed detection means for detecting the traveling vehicle speed of the vehicle and operation amount detection means for detecting the brake operation amount and / or steering angle and steering speed of the occupant are provided, and the value detected by the operation amount detection means is a predetermined value. In a control method for an occupant restraint device that activates at least one reversible occupant restraint means when a threshold value is exceeded,
A control method for an occupant restraint device, wherein the thresholds corresponding to the vehicle speed detected by the vehicle speed detection means are individually set, and these threshold values are selectively used. A travel path recognition means for recognizing the travel path of the vehicle; and an operation amount detection means for detecting a brake operation amount and / or a steering angle and a steering speed of the occupant. A value detected by the operation amount detection means is a predetermined value. In a control method for an occupant restraint device that activates at least one reversible occupant restraint means when a threshold value is exceeded,
A control method for an occupant restraint device, characterized in that the thresholds corresponding to the conditions of the travel path recognized by the travel path recognition means are individually set, and these threshold values are selectively used. 2. An operation amount recording means for recording a value detected by the operation amount detection means, and correcting the threshold value selected according to an operation amount history recorded by the operation amount recording means. The control method of the passenger | crew restraint apparatus of description.

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