JP2020075641A - Braking control system - Google Patents

Abstract

To provide a braking control system capable of reducing the burden imposed on a vehicle driver.SOLUTION: A braking control system includes a braking control device executing braking control on the condition that the braking control is in an operation preparation state and gear position detection means detects a predetermined gear position. The braking control device includes: a gear position determination section determining whether or not the gear position detected by the gear position detection means is a predetermined gear position when the braking control is being performed or in the operation preparation state; a warning output section outputting a warning indicating that the gear position is not the predetermined gear position when the negative determination is made by the gear position determination section; and a warning output storage section storing history of warnings issued by the warning output section. The warning output section limits the output of the warning when the history is stored in the warning output storage section.SELECTED DRAWING: Figure 2

Description

  The present disclosure relates to braking control systems.

  Braking control systems for controlling braking means for braking a vehicle are known. Such a braking control system, shift position detecting means for detecting the shift position of the shift lever for selecting the gear ratio of the transmission in the vehicle, and the input that the vehicle speed should be maintained below a predetermined value, Control means for controlling the braking means so that the speed is maintained below a predetermined value when the detected shift position is a predetermined shift position. According to such a braking control system, the control means, when the shift position of the shift lever to be detected is not the predetermined shift position even if the input that the vehicle speed is to be maintained below the predetermined value is performed, The control of the braking means is not executed so that the vehicle speed is maintained below the predetermined value.

  In addition, the above-described braking control system, when the shift position of the shift lever to be detected is not at the predetermined shift position even if the input that the speed of the vehicle should be maintained below the predetermined value is performed, It further comprises a notification means for warning the driver. According to such a braking control system, the notifying means is provided when the detected shift position of the shift lever is not at the predetermined shift position even if the input indicating that the vehicle speed should be maintained at the predetermined value or less is made. , A warning to the driver of the vehicle (see, for example, Patent Document 1).

JP, 2006-213293, A

  According to the above-described braking control system, when the detected shift position of the shift lever is at the predetermined shift position, the vehicle driver maintains the speed of the vehicle so that the speed of the vehicle is maintained below the predetermined value. It is possible to input that is to be maintained below a predetermined value.

  However, if an input indicating that the speed of the vehicle should be maintained at a predetermined value or less is made, the notification means drives the vehicle every time the driver of the vehicle changes the shift lever to a shift position other than the predetermined shift position. The driver of the vehicle is not annoyed because the driver is warned.

  In view of the above circumstances, at least one embodiment of the present invention aims to provide a braking control system that can reduce the annoyance of a driver of a vehicle.

  (1) A braking control system according to at least one embodiment of the present invention includes braking means for performing braking control for maintaining the vehicle speed at a first speed or lower, and gear position detecting means capable of detecting a gear position of a transmission. A braking control device that executes the braking control on condition that the braking control is in an operation preparation state and the gear position detecting means detects a predetermined gear position, and the braking control device includes: When the braking control is in operation or in an operation ready state, the gear position determination unit that determines whether the gear position detected by the gear position detection unit is a predetermined gear position, and the gear position determination unit And a warning output storage unit that stores a history of warnings by the warning output unit, the warning output unit including: If the history is stored in the warning output storage unit, the warning output is limited.

  According to the configuration of (1) above, the warning output unit limits the output of the warning even if the gear position determination unit determines that the history of the warning is stored in the warning storage unit. To do. Therefore, if the warning history is stored in the warning output storage unit, the warning output unit does not output the warning that the gear position is not the predetermined gear position even when the gear position determination unit determines that the gear position is not determined. As a result, even if the driver of the vehicle changes the gear position to a gear position other than the predetermined gear position while the braking control is in operation or in the preparation state for operation, the warning output unit warns that the gear position is not the predetermined gear position. Is output once, a warning indicating that the gear position is not the predetermined gear position is not output thereafter, so that the annoyance of the driver of the vehicle can be reduced.

  (2) In some embodiments, in the configuration of the above (1), the braking control device includes a transition condition determination unit that can determine whether or not a transition condition to the braking control is satisfied, and In the case where the braking control is in the operation preparation state, and when the gear position determination unit determines that the gear position is a predetermined gear position and the transition condition determination unit determines that the transition condition is satisfied, the control device determines that the transition condition is satisfied. , Executes the braking control.

  With configuration (2) above, the braking control device determines that the gear position determination unit is in the predetermined gear position when the braking control is in the operation preparation state, and the transition condition determination unit determines that the transition condition is met. When it is determined that the condition is satisfied, the braking control is executed. Accordingly, when the braking control is in the operation preparation state, when the gear position determination unit determines that the gear position is the predetermined gear position and when the transition condition determination unit determines that the transition condition is satisfied, the vehicle driver is Since it is not necessary to operate the braking means, it is possible to concentrate on the operation of the steering means.

  (3) In some embodiments, in the above configuration (1) or (2), the braking control device is configured to perform the warning output storage unit when the braking control is in operation or when an operation preparation state is released. The history stored in is deleted.

  With configuration (3) above, the braking control device erases the history of warnings stored in the warning output storage unit when the braking control is in operation or when the operation preparation state is released. Therefore, next, when the brake control is in the operation preparation state, if the gear position determination unit determines that the gear position is not the predetermined gear position, the warning output unit outputs a warning that the gear position is not the predetermined gear position. Thereby, the braking control system can prompt the driver of the vehicle to change the gear position to a predetermined gear position.

(4) In some embodiments, in the configuration according to any one of (1) to (3), the braking control device warns when the speed of the vehicle is equal to or lower than a second speed. The history stored in the output storage unit is deleted.

  With configuration (4) above, the braking control device deletes the history of warnings stored in the warning output storage unit when the vehicle speed becomes equal to or lower than the second speed. Accordingly, when the driver of the vehicle changes the gear position to a gear position that is not the predetermined gear position during execution of the braking control, the warning output unit can output a warning that the gear position is not the predetermined gear position. Thereby, the braking control system can prompt the driver of the vehicle to return the gear position to the predetermined gear position.

  (5) In some embodiments, in any one of the configurations (1) to (3), a transfer capable of switching between a high gear train and a low gear train is provided, and in the braking control device, the transfer is a high gear train. In the case of a train, when the speed is equal to or lower than the second speed, the history stored in the warning output storage unit is deleted, and when the transfer is a low gear train, the speed is slower than the second speed. When the speed becomes 3 or less, the history stored in the warning output storage unit is deleted.

  According to the configuration of (5), when the transfer is the high gear train, the braking control device deletes the history of the warning stored in the warning output storage unit when the transfer speed becomes the second speed or less, and transfers the transfer. Is a low gear train, the history of warnings stored in the warning output storage unit is deleted when the speed becomes equal to or lower than the third speed which is slower than the second speed. Accordingly, when the driver of the vehicle changes the gear position to a gear position that is not the predetermined gear position during execution of the braking control, the warning output unit can output a warning that the gear position is not the predetermined gear position. Thereby, the braking control system can prompt the driver of the vehicle to return the gear position to the predetermined gear position.

  (6) In some embodiments, in the configuration according to any one of (1) to (5), the predetermined gear position is a position corresponding to any one of first forward speed, reverse speed, and neutral. is there.

  According to the above configuration (6), when the braking control is in the operation preparation state and the gear position determination unit determines that the gear position corresponds to any one of the first forward speed, the reverse speed, and the neutral position, the vehicle speed is reduced. The braking control is performed to maintain the vehicle speed below the first speed. As a result, the braking control is brought into the operation preparation state, and when the gear position detecting means determines that the gear position corresponds to any one of the first forward speed, the reverse movement, and the neutral position, the vehicle driver operates the braking means. There is no need to do it, and you can concentrate on operating the steering means.

  (7) In some embodiments, in the configuration of (2), the transition control unit determines that the transition condition determination unit determines whether the braking control device does not execute the braking control even when the braking control is in an operation preparation state. It further includes a transition condition output unit that outputs a transition condition when it is determined that the condition is not satisfied.

  According to the above configuration (7), the braking control device determines that the transition condition output unit determines that the transition condition determination unit is not satisfied when the braking control is not executed even if the braking control is in the operation preparation state. Output the transition condition. As a result, the driver of the vehicle determines the transition condition of the navigation system when the transition condition output unit determines that the transition condition determination unit is not satisfied when the braking control is not executed even when the braking control is in the operation preparation state. It can be output to an external device such as a monitor.

  According to at least one embodiment of the present invention, when the braking control is in operation or in the operation preparation state, even if the driver of the vehicle changes the gear position to a gear position other than the predetermined gear position, the warning output unit has the predetermined output. Once the warning indicating that the gear position is not present is output, the warning indicating that the gear position is not the predetermined gear is not output thereafter, so that the annoyance of the driver of the vehicle can be reduced.

It is a figure which shows roughly the structure of the vehicle in which the braking control system which concerns on one Embodiment of this invention is mounted. It is a figure which shows roughly the control structure of the braking control system which concerns on one Embodiment of this invention. It is a flow chart which shows roughly the control contents of the braking control system concerning one embodiment of the present invention. It is a flow chart which shows roughly the control contents of the braking control system concerning one embodiment of the present invention. It is a flow chart which shows roughly the control contents of the braking control system concerning one embodiment of the present invention.

  Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative positions, etc. of the components described as the embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, but are merely illustrative examples. Absent. For example, the expressions representing relative or absolute arrangements such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric", or "coaxial" are strict. In addition to representing such an arrangement, it also represents a state in which the components are relatively displaced by a tolerance or an angle or a distance at which the same function can be obtained. Further, for example, an expression representing a shape such as a quadrangle or a cylindrical shape does not only represent a shape such as a quadrangle or a cylindrical shape in a geometrically strict sense, but also an uneven portion or A shape including a chamfered portion and the like is also shown. On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one element are not exclusive expressions excluding the existence of other elements.

  FIG. 1 is a diagram schematically showing a configuration of a vehicle 2 in which a braking control system 1 according to an embodiment of the present invention is mounted.

  The braking control system 1 according to the embodiment of the present invention is, for example, a braking control system called a hill descent control system (HDC (Hill Desent Control)).

  As shown in FIG. 1, the braking control system 1 is mounted on a two-wheel drive vehicle or a four-wheel drive vehicle, but here, as shown in FIG. 1, the vehicle is normally driven by two-wheel drive (2WD). A braking control system 1 installed in a four-wheel drive vehicle 2 that is switched to four-wheel drive (4WD) by operation will be described as an example.

  A four-wheel drive vehicle 2 equipped with a braking control system 1 according to an embodiment of the present invention includes an engine 21, a transmission 22, a transfer 23, a front differential 24, and a rear differential 25.

  The engine 21 is a drive source of the vehicle 2, and is, for example, a gasoline engine that uses gasoline as a fuel or a diesel engine that uses light oil as a fuel.

  The transmission 22 is a transmission connected to the output shaft of the engine 21, and the transmission 22 of the vehicle 2 in which the braking control system 1 according to the embodiment of the present invention is mounted is such that the driver of the vehicle 2 shifts the shift lever 221. The manual transmission is configured such that one gear train can be selected from a plurality of gear trains having different reduction ratios by operating the. A clutch (not shown) that interrupts the transmission of rotational power is provided between the engine 21 and the transmission 22.

  The transmission 22 has, for example, five types of gear trains as a gear train (forward gear train) for moving the vehicle 2 forward, and these five types of gear trains respectively include five types of shift lever 221 shifts. It is associated with the position. The shift position of the shift lever 221 is the first speed, the second speed, ... The fifth speed in the order of increasing gear ratio, and the rotation of the engine 21 is decelerated as the gear ratio increases. Further, the transmission 22 has, for example, one type of gear train as a gear train (reverse gear train) for moving the vehicle 2 backward, and this gear train has a shift position “R (reverse drive) of the shift lever 221. ) ”Is supported. The gear ratio of the reverse gear train is set to be approximately the same as the gear ratio of the forward gear train corresponding to the first speed.

  The transfer 23 is a power distribution device that has an input shaft connected to the output shaft of the transmission 22 and distributes the output (driving force, torque) of the engine 21 to the front and rear axles. The transfer 23 has two types of gear trains, a high gear train on the high speed side that transmits the rotational drive force of the transmission 22 without decelerating, and a low gear train on the low speed side that further reduces the rotational drive force of the transmission 22. By operating the shift lever 231 for the transfer 23, the driver of the vehicle 2 can switch between the high gear train and the low gear train as appropriate to selectively use them.

  Further, the transfer 23 has a center differential 232 therein. The center differential 232 is capable of absorbing the rotational difference between the front wheels 28L, 28R and the rear wheels 29L, 29R and distributing the driving force to the front propeller shaft 26 on the front wheel side and the rear propeller shaft 27 on the rear wheel side.

  The front differential 24 absorbs the rotation difference between the left and right front wheels 28L, 28R, and can distribute the driving force transmitted from the front propeller shaft 26 to the left and right to transmit the driving force.

  The rear differential 25 absorbs the rotational difference between the left and right rear wheels 29L and 29R, and can distribute the driving force transmitted from the rear propeller shaft 27 to the left and right to transmit the driving force.

  A four-wheel drive vehicle 2 equipped with a braking control system 1 according to an embodiment of the present invention includes a brake device 30. The brake device 30 is a device that applies a braking force (braking force) to the vehicle 2 in response to an operation of a brake pedal 31 by a driver of the vehicle 2. The brake device 30 has a wheel cylinder 32 and a brake pad 33 for each wheel. The hydraulic pressure of the hydraulic fluid (brake fluid) can be transmitted from the master cylinder 34 to the wheel cylinders 32, and the hydraulic pressure of the master cylinder 34 can be increased or decreased according to the pedaling force of the brake pedal 31 by the driver of the vehicle 2. is there. That is, the hydraulic fluid is transmitted to the wheel cylinders 32, the brake pads 33 are pushed out, and come into contact with the brake discs 35, whereby friction braking force (brake force) is applied to each wheel.

  The four-wheel drive vehicle 2 in which the braking control system 1 according to the embodiment of the present invention is mounted includes a hydraulic unit 36 in addition to the brake pedal 31. The hydraulic unit 36 can transmit the hydraulic pressure of the hydraulic fluid to the wheel cylinders 32 provided for each wheel, and can realize braking control.

  A four-wheel drive vehicle 2 equipped with a braking control system 1 according to an embodiment of the present invention includes a collision damage reduction brake (FCM (Forward Collision Migration System)) 63 (see FIG. 2). The collision damage reduction brake 63 monitors the distance and relative speed between the camera 61 and the image processing device 62 or a radar (not shown) with respect to the vehicle in front, and promptly reduces the inter-vehicle distance due to deceleration / stop of the vehicle in front. Detecting, warning, and automatic braking can contribute to avoiding collisions with front vehicles and reducing collision damage.

  FIG. 2 is a block diagram schematically showing the control configuration of the braking control system 1 according to the embodiment of the present invention.

  As shown in FIG. 2, the braking control system 1 according to at least one embodiment of the present invention includes a control switch 11, gear position detection sensors (gear position detection means) 12 and 13, and a braking control device 14. ..

  The control switch 11 is arranged, for example, in the vicinity of the shift lever 221 arranged in the center console in the vehicle compartment. The control switch 11 is composed of, for example, a push switch. When the control switch 11 is pressed in the off state, the control switch 11 is turned on, and when the control switch 11 is pressed in the on state, the control switch 11 is turned off.

  Further, the combination meter 40 provided in the driver's seat is provided with a braking control display 401. The braking control display 401 is turned on when the control switch 11 is turned on, and is turned off when the control switch 11 is turned off. Accordingly, the driver sitting in the driver's seat can recognize whether the control switch 11 is on (is it off). Further, the braking control display 401 blinks during execution of the braking control. Thereby, the driver sitting in the driver's seat can recognize whether or not the braking control is being executed.

  The gear position detection sensor (gear position detection means) 12 can detect the gear position of the transmission 22. The gear position corresponds to the shift position of the shift lever 221, and for example, in the transmission 22 of the fifth forward speed and the first reverse speed, the gear positions corresponding to the first speed, the second speed ... It can be detected.

  The gear position detection sensor (gear position detection means) 13 can detect the position of the gear train of the transfer 23. The position of the gear train corresponds to the shift position of the shift lever 231, and the position of the high gear train and the position of the low gear train can be detected, for example.

  When the control switch 11 is turned on and the gear position detection sensor 12 detects a predetermined gear position, the braking control device 14 enters the braking control ready state and sets the speed of the vehicle 2 to a predetermined value (first speed). Allows execution of braking control maintained below. The predetermined gear position is, for example, one of forward first speed, R (reverse) or neutral (neutral), the control switch 11 is turned on, and the gear position detected by the gear position detection sensor 12 is forward. If the vehicle is in the 1st speed, R (reverse) or neutral position, the braking control is ready for operation, and the braking control can be executed. The predetermined value (first speed) is, for example, 20 km / h, and the braking control can maintain the speed of the vehicle 2 at 20 km / h or less.

  In the braking control system 1 according to the embodiment of the present invention, the braking control is performed by operating the brake pedal 31 or the accelerator pedal 37 if the speed of the vehicle 2 is a predetermined value (first speed) or less. It is adjustable to. Therefore, for example, when the predetermined value (first speed) is 20 km / h, by operating the brake pedal 31, the speed of the vehicle 2 can be reduced to 20 km / h or less, and the accelerator pedal 37 is operated. As a result, the speed of the vehicle 2 that has fallen below 20 km / h can be increased.

  The braking control device 14 includes a control unit 141, a gear position determination unit 142, a warning output unit 143, and a warning output storage unit 144. The braking control device 14 includes, for example, a processor having a control device and an arithmetic device, and memories such as a RAM (Random Access Memory) and a ROM (Read Only Memory), which are a control unit 141 and a gear position determination unit 142. The warning output unit 143 and the warning output storage unit 144 are configured.

  The control unit 141 is a unit that controls the main control of the braking control device 14, and is capable of comprehensive control of the gear position determination unit 142, the warning output unit 143, and the warning output storage unit 144, and the control unit 141 is as described above. Then, when the control switch 11 is turned on and the gear position detection sensor 12 detects a predetermined gear position, the braking control is brought into the operation preparation state and the speed of the vehicle 2 is maintained below the predetermined value (first speed). Allows execution of braking control.

  The gear position determination unit 142 determines whether the gear position detected by the gear position detection sensor 12 is a predetermined gear position when the control switch 11 is turned on. As described above, when the predetermined gear position is one of the first forward speed, the R (reverse) or the neutral position, the gear position determination unit 142 causes the gear position detection sensor when the control switch 11 is turned on. It is determined whether the gear position detected by 12 is the forward first speed, R (reverse) or neutral position.

  The warning output unit 143 outputs a warning that the gear position is not the predetermined gear position when the gear position determination unit 142 determines NO. The warning output storage unit 144 stores the history of warnings issued by the warning output unit 143. Further, the warning output unit 143 described above limits the output of the warning if the history of the warning is stored in the warning output storage unit 144.

  Therefore, for example, when the warning output storage unit 144 is configured by a flag, the warning output unit 143 determines that the gear position determination unit 142 determines that it is not, and when the flag is not set, a predetermined gear is determined. It outputs a warning that it is not in a position and sets a flag (sets a flag). On the other hand, even if the gear position determination unit 142 determines that the flag is not set, if the flag is set, the warning output unit 143 does not output a warning indicating that the gear position is not the predetermined gear position, or sets the flag ( No flag is set).

  The warning output unit 143 outputs a warning to, for example, the speaker 41 provided in the vehicle compartment, but the present invention is not limited to this. For example, the warning output unit 143 may output a warning to the combination meter 40 or the navigation. A warning may be output to the monitor 51 of the system 5.

  According to the braking control system 1 according to the embodiment of the present invention described above, the warning output unit 143 stores the warning history in the warning output storage unit 144 even when the gear position determination unit 142 determines that the warning history is not present. If it is stored, the warning output is limited. Therefore, if the history of warnings is stored in the warning output storage unit 144, the warning output unit 143 does not output the warning that the gear position is not the predetermined gear position even when the gear position determination unit 142 determines that the gear position is not determined. Thus, even if the driver of the vehicle 2 changes the gear position to a gear position other than the predetermined gear position when the braking control is in operation or in the operation preparation state, the warning output unit 143 does not indicate the predetermined gear position. Once the warning is output, the warning that the gear position is not the predetermined position is not output thereafter, so that the annoyance of the driver of the vehicle 2 can be reduced.

  In the braking control system 1 according to the embodiment of the present invention, the braking control device 14 further includes a transition condition determination unit 145. As described above, the braking control device 14 includes, for example, a processor and a memory, which form the transition condition determination unit 145.

  The transition condition determination unit 145 can determine whether or not the transition condition to the braking control is satisfied. The transition condition to the braking control is, for example, the speed of the vehicle 2 and the slope of the slope on which the vehicle 2 descends. , The condition for shifting to the braking control is not satisfied. The transition condition to the braking control may include, for example, non-operation of the collision damage reduction brake 63, and the transition condition to the braking control may not be satisfied while the collision damage reduction brake 63 is in operation. Furthermore, the transition condition to the braking control may include, for example, that the hydraulic unit 36 has not failed, and if the hydraulic unit 36 has a failure, the transition condition to the braking control may not be satisfied. Good. The speed of the vehicle 2 can be detected by the wheel speed sensor 38 provided in the vehicle 2, and the slope of the slope on which the vehicle 2 descends can be detected by the G sensor 39 provided in the vehicle 2.

  In the braking control system 1 according to the embodiment of the present invention described above, the braking control device 14 sets the control switch 11 to the ON state so that the braking control is in the operation preparation state, and the gear position determination unit 142 is in the predetermined state. When it is determined that the shift condition is satisfied and the shift condition determination unit 145 determines that the shift condition is satisfied, the braking control is executed.

  As described above, the control unit 141 is a unit that controls the main control of the braking control device 14, and controls the shift condition determination unit 145 in addition to the gear position determination unit 142, the warning output unit 143, and the warning output storage unit 144 described above. When the control is possible and the control switch 11 is turned on, the braking control is ready for operation, the gear position detection sensor 12 detects a predetermined gear position, and the transition condition determination unit 145 determines the transition condition. When it is determined that is satisfied, the braking control is executed. As a result, the driver of the vehicle 2 does not have to operate the braking means (brake pedal 31) and can concentrate on the operation of the steering means (steering wheel (not shown)).

  In the braking control system 1 according to the embodiment of the present invention, the braking control device 14 (control unit 141) turns off the control switch 11 so that when the braking control is in operation or the operation preparation state is released. The warning history stored in the warning output storage unit 144 is deleted.

  According to the braking control system 1 according to the embodiment of the present invention described above, when the control switch 11 is turned on next to bring the braking control into the operation preparation state, the gear position determination unit 142 determines the predetermined position. If it is determined that the gear position is not in the gear position, the warning output unit 143 outputs a warning that the gear position is not in the predetermined gear position. Accordingly, the braking control system 1 can prompt the driver of the vehicle 2 to change the gear position to the predetermined gear position.

  In the braking control system 1 according to the embodiment of the present invention, the braking control device 14 (control unit 141), when the speed of the vehicle 2 becomes a predetermined value (second speed) or less, the warning output storage unit 144. Clear the history of warnings stored in. The predetermined value (second speed) is, for example, 10 km / h.

  In the braking control system 1 according to the embodiment of the present invention, the braking control device 14 (the control unit 141) causes the warning output storage unit 144 to store the warning output storage unit 144 when the transfer 23 is in the high gear and when the transfer speed is equal to or lower than the second speed. The stored history of warnings is deleted, and when the transfer 23 is in low gear, the history of warnings stored in the warning output storage unit 144 is deleted when the transfer speed is equal to or lower than the third speed which is slower than the second speed. To do. The second speed is, for example, 10 km / h, and the third speed is 6 km / h.

  According to the above-described braking control system 1 according to the embodiment of the present invention, when the gear position is changed to a gear position that is not the predetermined gear position during execution of the braking control and the operation preparation state, the warning output unit 143 sets the predetermined value. It is possible to output a warning that the gear position is not. Accordingly, the braking control system 1 can prompt the driver of the vehicle 2 to return the gear position to the predetermined gear position.

  In the braking control system 1 according to the embodiment of the present invention, the predetermined gear position is a position corresponding to any one of forward first speed, R (reverse) and neutral.

  According to the braking control system 1 according to the embodiment of the present invention described above, the braking control device 14 (the control unit 141) causes the control switch 11 to be turned on so that the braking control is in the operation preparation state and the gear position. When the detection sensor 12 detects a gear position corresponding to any one of forward first speed, R (reverse) and neutral, braking control for maintaining the speed of the vehicle 2 at a predetermined value (first speed) or less is executed. .. As a result, the braking control is set to the ready state, and when the gear position detection sensor 12 detects the gear position corresponding to any one of the first forward speed, R (reverse) and neutral, the driver of the vehicle 2 brakes. It is not necessary to operate the means (brake), and it is possible to concentrate on the operation of the steering means (handle).

  In the braking control system 1 according to the embodiment of the present invention, the braking control device 14 further includes a transition condition output unit 146. The transition condition output unit 146 outputs the transition condition determined by the transition condition determination unit 145 to be unsatisfied when the braking control is not executed even when the braking control is in the operation preparation state by turning on the control switch 11. To enable. The output destination of the transition condition output unit 146 is, for example, the monitor 51 of the navigation system 5, and the driver of the vehicle 2 can confirm the transition condition determined to be unsatisfied by visually observing the monitor 51 of the navigation system 5. is there. This allows the driver of the vehicle 2 to know the reason why the braking control is not executed.

  3 to 5 are flowcharts schematically showing the control of the braking control system 1 according to the embodiment of the present invention. The control of the braking control system 1 according to the embodiment of the present invention is shared by a vehicle 2 (MT vehicle) equipped with a manual transmission and a vehicle (AT vehicle) equipped with an automatic transmission. Here, the control of the vehicle 2 (MT vehicle) equipped with the manual transmission will be described, and the control of the vehicle (AT vehicle) equipped with the automatic transmission will be minimized.

  As shown in FIG. 3, in the braking control system 1 according to the embodiment of the present invention, first, the target vehicle 2 (own vehicle) of the braking control device 14 (control unit 141) is the vehicle 2 equipped with the manual transmission. It is determined whether the vehicle is an (MT vehicle) (step S11). When the braking control device 14 (control unit 141) determines that the own vehicle is not the MT vehicle, that is, when the own vehicle is the AT vehicle (step S11: No), the braking control device 14 (control unit 141) , AT vehicle braking control is executed (step S100).

  On the other hand, when the braking control device 14 (control unit 141) determines that the host vehicle is an MT vehicle, the braking control device 14 (control unit 141) determines whether or not the braking control is inoperable ( Step S12).

  When the braking control is not in the inoperable state, that is, when the braking control is in the operable state (step S12: No), the process proceeds to the preparation for the operation of the braking control or the execution of the braking control (step S13). When the braking control is not inoperable, that is, when the braking control is operable, the control switch 11 is turned on and the gear position detection sensor 12 detects a predetermined gear position.

  Next, when the braking control is inoperable (step S12: Yes), the braking control device 14 (control unit 141) determines whether the control switch 11 is turned on (step S14). When it is determined that the control switch 11 is turned on (step S14: No), that is, when the control switch 11 is not turned on, the braking control device 14 (control unit 141) determines that the braking control is inoperable. Continue (step S17).

  On the other hand, when it is determined that the control switch 11 is turned on (step S14: Yes), that is, when the control switch 11 is turned on and the braking control is activated, the transition condition determination unit 145 changes the braking control. It is determined whether the transition condition is satisfied (step S15).

  When the transition condition determination unit 145 determines that the transition condition to the braking control is not satisfied (step S15: No), the transition condition output unit 146 outputs the transition condition determined that the transition condition determination unit 145 is not satisfied. (Step S16). Then, the braking control device 14 (control unit 141) continues the inoperable state of the braking control (step S17).

  On the other hand, when the shift condition determination unit 145 determines that the shift condition to the braking control is satisfied (step S15: Yes), the gear position determined by the gear position detection sensor 12 by the gear position determination unit 142 is the predetermined gear position. It is determined whether or not it is in the gear position (step S18). As described above, for example, the predetermined gear position is one of forward first speed, R (reverse) or neutral (neutral), and the gear position determination unit 142 determines the gear position detected by the gear position detection sensor 12. Is in the predetermined gear position when the vehicle is in the forward first speed, R (reverse) or neutral (neutral) position. On the other hand, when the gear position detected by the gear position detection sensor 12 is not in the first forward speed, R (reverse) or neutral (neutral) position, the gear position determination unit 142 is not in the predetermined gear position (no ) Is determined.

  When the gear position determination unit 142 determines that the gear position detected by the gear position detection sensor 12 is at the predetermined gear position (step S18: Yes), the operation shifts to the braking control operation preparation or the braking control execution (step S19). ..

  On the other hand, when the gear position determination unit 142 determines that the gear position detected by the gear position detection sensor 12 is not at the predetermined gear position (No) (step S18: No), the warning output unit 143 indicates that the gear position is not the predetermined gear position. A warning is output (step S20). The warning output storage unit 144 also stores a history of outputting a warning that the gear position is not the predetermined gear position (warning history) (step S21).

  As shown in FIG. 4, the braking control device 14 (control unit 141) determines whether or not the braking control can be executed, that is, the braking control is in the operation preparation state, and the control switch 11 is turned off ( Step S31).

  When it is determined that the control switch 11 is turned off (step S31: Yes), that is, when the control switch 11 is turned off, the braking control device 14 (control unit 141) is in a state in which the braking control can be executed ( The braking control is shifted from the operation preparation state) to the inoperable state (step S32), and the braking control device 14 (control unit 141) indicates that the gear position is not the predetermined gear position stored in the warning output storage unit 144. The history of warning output (warning history) is deleted (step S33).

  On the other hand, when it is determined that the control switch 11 is off (step S31: No), that is, when the control switch 11 is not off, the braking control device 14 (control unit 141) determines that the speed of the vehicle 2 is low. It is determined whether or not it is equal to or lower than a predetermined value (second speed) (step S34). The second speed is, for example, 10 km / h.

  The second speed may differ depending on the gear position of the transfer 23. For example, when the gear position of the transfer 23 is the position of the high gear train, the second speed is set as the second speed, and when the gear position of the transfer 23 is the position of the low gear train. The third speed may be slower than the second speed. The second speed is, for example, 10 km / h, and the third speed is, for example, 6 km / h.

  When the braking control device 14 (control unit 141) determines that the speed of the vehicle 2 is equal to or lower than the predetermined value (second speed) (step S34: Yes), the predetermined value stored in the warning output storage unit 144 is determined. The history of outputting the warning indicating that the gear position is not set (warning history) is deleted (step S35).

  On the other hand, when the braking control device 14 (control unit 141) determines that the speed of the vehicle 2 is not equal to or lower than the predetermined value (second speed) (step S34: No), the gear position determination unit 142 causes the gear position detection sensor It is determined whether the gear position detected by 12 is a predetermined gear position (step S36).

  When the gear position determination unit 142 determines that the gear position detected by the gear position detection sensor 12 is at the predetermined gear position (step S36: Yes), the warning that the gear position is not the predetermined gear position is not output, and the braking control is activated. Maintains readiness (return).

  On the other hand, when the gear position determination unit 142 determines that the gear position detected by the gear position detection sensor 12 is not at the predetermined gear position (No) (step S36: No), the control unit 141 sets the warning output storage unit 144 to the predetermined position. It is determined whether or not a history (warning history) of outputting a warning indicating that the gear position is not stored is stored (step S37).

  When the control unit 141 determines that the warning output storage unit 144 stores the history of outputting the warning that the gear position is not the predetermined gear position (warning history) (step S37: Yes), the warning output unit 143 determines that the warning output unit 143 has the predetermined history. The alarm indicating that the gear position is not set is not output, and the braking control inoperable state is maintained (return).

  On the other hand, when the control unit 141 determines that the history of outputting the warning indicating that the gear position is not the predetermined gear position (warning history) is not stored in the warning output storage unit 144 (step S37: No), the warning output unit 143 determines A warning indicating that the gear position is not the predetermined gear position is output (step S38), and a history of outputting the warning indicating that the gear position is not the predetermined gear position (warning history) is stored in the warning output storage unit 144 (step S39). Then, the braking control is kept inoperable (return).

  As shown in FIG. 5, the control unit 141 determines whether the control switch 11 is turned off while the braking control is being executed (step S41).

  When it is determined that the control switch 11 is off (step S41: Yes), that is, when the control switch 11 is off, the control unit 141 determines that the braking control is inoperable from the state in which the braking control is being executed. (Step S42), and the control unit 141 erases the history (warning history) of outputting the warning indicating that the gear position is not the predetermined gear position stored in the gear determination storage unit (Step S43).

  On the other hand, when it is determined that the control switch 11 is turned off (step S41: No), that is, when the control switch 11 is not turned off, the gear position determination unit 142 detects the gear position detection sensor 12. It is determined whether the gear position is a predetermined gear position (step S44).

  When the control unit 141 determines that the gear position determination unit 142 determines that the gear position detected by the gear position detection sensor 12 is at the predetermined gear position (step S44: Yes), the state in which the braking control is executed is maintained (step S44: Yes). return).

  When the control unit 141 determines that the gear position determination unit 142 determines that the gear position detected by the gear position detection sensor 12 is not at the predetermined gear position (No) (step S44: No), the execution of the braking control ends (step S44). S45), the warning output unit 143 outputs a warning indicating that the gear position is not the predetermined gear position (step S46), and stores a history (warning history) of outputting the warning indicating that the gear position is not the predetermined gear position in the warning output storage unit 144. Yes (step S47).

  According to the braking control system 1 according to the embodiment of the present invention described above, the warning output unit 143, even when the gear position determination unit 142 determines that the gear position determination unit 142 is not (step S36: No), the warning output storage unit. If the warning history is stored in 144 (step S37: Yes), the warning output unit 143 does not output a warning that the gear position is not the predetermined gear position. Thus, even if the driver of the vehicle 2 changes the gear position to a gear position other than the predetermined gear position when the braking control is in operation or in the operation preparation state, the warning output unit 143 does not indicate the predetermined gear position. Is output once, the warning indicating that the gear position is not the predetermined gear position is not output thereafter, so that the annoyance of the driver of the vehicle 2 can be reduced.

  Further, according to the braking control system 1 according to the above-described embodiment of the present invention, the braking control device 14 sets the braking control to the operation preparation state by turning on the control switch 11 (step S14: Yes). Further, when the transition condition determination unit 145 determines that the transition condition is satisfied (step S15: Yes) and the gear position determination unit 142 determines that the gear position is a predetermined gear position (step S18: Yes), the braking control is performed. Shifts to preparation for operation or execution of braking control (step S19). As a result, when the braking control is in the ready state for operation, the transition condition determination unit 145 determines that the transition condition is satisfied, and the gear position determination unit 142 determines that the gear position is a predetermined gear position, the vehicle 2 The driver does not have to operate the braking means (brake), and can concentrate on the operation of the steering means (steering wheel).

  Further, according to the braking control system 1 according to the above-described embodiment of the present invention, the braking control device 14 releases the operation preparation state of the braking control by turning off the control switch 11 (step S31: Yes). If so, the history of warnings stored in the warning output storage unit 144 is deleted (step S33). Therefore, next, when the control switch 11 is turned on and the braking control is ready for operation (step S14: Yes), if the gear position is not the predetermined gear position (step S18: No), the warning output unit 143 outputs A warning that the gear position is not the predetermined gear position is output (step S20). Accordingly, the braking control system 1 can prompt the driver of the vehicle 2 to change the gear position to the predetermined gear position.

  Further, according to the braking control system 1 according to the above-described embodiment of the present invention, the braking control device 14 is configured such that, when the transfer 23 is in the high gear train, the warning output storage unit is provided when the transfer speed is equal to or lower than the second speed. The warning history stored in 144 is deleted, and when the transfer 23 is in the low gear train, the warning output stored in the warning output storage unit 144 when the transfer speed is equal to or lower than the third speed which is slower than the second speed. The history is erased (step S35). As a result, when the gear position is changed to a gear position other than the predetermined gear position in the brake control operation ready state (step S36: No), the warning output unit 143 outputs a warning indicating that the gear position is not the predetermined gear position (step S36). S38). Accordingly, the braking control system 1 can prompt the driver of the vehicle 2 to return the gear position to the predetermined gear position.

  Further, according to the braking control system 1 according to the embodiment of the present invention described above, the control switch 11 is turned on (step S14: Yes), the braking control is set in the operation preparation state, and the gear position determination unit 142 is set. Is determined to be a gear position corresponding to any one of forward first speed, R (reverse) and neutral (step S18: Yes), an operation of the braking control for maintaining the speed of the vehicle 2 at the first speed or lower. The process proceeds to preparation or execution of braking control (step S19). As a result, when the gear position determination unit 142 determines that the gear position corresponds to one of the first forward speed, R (reverse) and neutral, the driver of the vehicle 2 operates the braking means (brake). It becomes unnecessary to concentrate on the operation of the steering means (handle).

  Further, according to the braking control system 1 according to the embodiment of the present invention described above, the braking control device 14 makes the braking control ready for operation by turning on the control switch 11 (step S14: Yes). When the braking control is not executed (step S15: No), the transition condition output unit 146 outputs the transition condition that the transition condition determination unit 145 determines that the transition condition is not satisfied (step S16). As a result, when the driver of the vehicle 2 does not execute the braking control even when the braking control is in the operation preparation state by turning on the control switch 11, the transition when the transition condition determining unit 145 determines that the transition is not established The condition can be output to an external device such as the monitor 51 of the navigation system 5. This allows the driver of the vehicle 2 to know the reason why the braking control is not executed.

  The present invention is not limited to the above-described embodiment, and includes a modified form of the above-described embodiment and a combination of these forms as appropriate.

DESCRIPTION OF SYMBOLS 1 Braking control system 11 Control switch 12 Gear position detection sensor 13 Gear position detection sensor 14 Braking control device 141 Control unit 142 Gear position determination unit 143 Warning output unit 144 Warning output storage unit 145 Transition condition determination unit 146 Transition condition output unit 2 Vehicle 22 transmission 221 shift lever 23 transfer 231 shift lever 30 braking device 31 brake pedal 32 wheel cylinder 36 hydraulic unit 38 wheel speed sensor 39 G sensor 40 combination meter 401 braking control display 5 navigation system 51 monitor 63 collision damage reduction brake

Claims (7)

Braking means for performing braking control for maintaining the speed of the vehicle at or below the first speed;
Gear position detecting means capable of detecting the gear position of the transmission,
A braking control device that executes the braking control on condition that the braking control is in an operation preparation state and the gear position detecting means detects a predetermined gear position,
The braking control device,
A gear position determination unit that determines whether or not the gear position detected by the gear position detection means is a predetermined gear position when the braking control is in operation or in an operation preparation state,
A warning output unit that outputs a warning indicating that the gear position is not the predetermined gear position when the gear position determination unit determines no,
A warning output storage unit that stores a history of warnings issued by the warning output unit;
The braking control system, wherein the warning output unit limits the output of the warning if the history is stored in the warning output storage unit. The braking control device,
Including a transition condition determination unit that can determine whether the transition condition to the braking control is satisfied,
The braking control device,
The braking control is performed when the braking control is in an operation preparation state, when the gear position determination unit determines that the gear position is a predetermined gear position, and when the transition condition determination unit determines that the transition condition is satisfied. The braking control system according to claim 1, wherein: The braking control device,
The braking control system according to claim 1 or 2, wherein the history stored in the warning output storage unit is deleted when the braking control is in operation or when an operation preparation state is released. The braking control device,
The braking control according to any one of claims 1 to 3, wherein the history stored in the warning output storage unit is deleted when the speed of the vehicle becomes equal to or lower than a second speed. system. Equipped with a transfer that can switch between high gear row and low gear row,
The braking control device,
When the transfer is a high gear train, the history stored in the warning output storage unit is deleted when the transfer speed is equal to or lower than a second speed,
When the transfer is a low gear train, the history stored in the warning output storage unit is erased when the transfer speed is equal to or lower than a third speed lower than the second speed. 4. The braking control system according to any one of items 1 to 3. The braking control system according to any one of claims 1 to 5, wherein the predetermined gear position corresponds to one of forward first speed, reverse, and neutral. The braking control device,
A transition condition output unit that outputs a transition condition when the transition condition determination unit determines that the transition condition determination unit is not satisfied when the braking control is not executed even when the braking control is in the operation preparation state. The braking control system according to Item 2.

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