WO2023145166A1 - 鞍乗り型車両及び触覚刺激システム - Google Patents
鞍乗り型車両及び触覚刺激システム Download PDFInfo
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- WO2023145166A1 WO2023145166A1 PCT/JP2022/039619 JP2022039619W WO2023145166A1 WO 2023145166 A1 WO2023145166 A1 WO 2023145166A1 JP 2022039619 W JP2022039619 W JP 2022039619W WO 2023145166 A1 WO2023145166 A1 WO 2023145166A1
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- Prior art keywords
- tactile
- driver
- notification
- saddle
- type vehicle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J50/00—Arrangements specially adapted for use on cycles not provided for in main groups B62J1/00 - B62J45/00
- B62J50/20—Information-providing devices
- B62J50/21—Information-providing devices intended to provide information to rider or passenger
- B62J50/22—Information-providing devices intended to provide information to rider or passenger electronic, e.g. displays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W50/16—Tactile feedback to the driver, e.g. vibration or force feedback to the driver on the steering wheel or the accelerator pedal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J27/00—Safety equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0062—Adapting control system settings
- B60W2050/0075—Automatic parameter input, automatic initialising or calibrating means
- B60W2050/0083—Setting, resetting, calibration
- B60W2050/0088—Adaptive recalibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
- B60W2520/105—Longitudinal acceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
- B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
- B62K23/02—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
Definitions
- the present invention relates to a saddle-riding vehicle and a tactile stimulation system.
- Patent Literature 1 discloses a straddle-type vehicle equipped with a tactile stimulus actuator that transmits information to the driver by applying forward or rearward pressure to the driver's left or right hand as a tactile stimulus. .
- the present invention has been made in view of the circumstances described above, and an object of the present invention is to suppress deterioration in the accuracy of information notification due to tactile stimulation.
- One aspect of the present invention is a saddle-ride type vehicle (10) in which a communication unit (147) communicates with a tactile stimulus device (50) that provides a tactile stimulus to a driver, and controls the tactile stimulus device (50).
- a control unit (150) for controlling the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulus device (50) by transmitting a control signal to the driver, and a first detection unit for detecting the state of the saddle-riding type vehicle. (120), wherein the control unit (150) controls the tactile sense stimulation device (50) based on the state of the saddle-ride type vehicle (10) detected by the first detection unit (120).
- a saddle-ride type vehicle (10) characterized by changing the magnitude of tactile stimulation given to a person.
- FIG. 1 is a side view of a saddle-ride type vehicle.
- FIG. 2 is a block diagram showing the configuration of the tactile sense stimulation system.
- FIG. 3 is a diagram showing the first map.
- FIG. 4 is a diagram showing a second map.
- FIG. 5 is a diagram showing a third map.
- FIG. 6 is a diagram showing a fourth map.
- FIG. 7 is a flow chart showing the operation of the straddle-type vehicle of the first embodiment.
- FIG. 8 is a conventional signal waveform diagram showing the behavior of a saddle-ride type vehicle when a control signal is output.
- FIG. 9 is a signal waveform diagram showing the behavior of the straddle-type vehicle when the control signal is output.
- FIG. 8 is a conventional signal waveform diagram showing the behavior of a saddle-ride type vehicle when a control signal is output.
- FIG. 9 is a signal waveform diagram showing the behavior of the straddle-type vehicle when the control signal is output.
- FIG. 10 is a signal waveform diagram showing the behavior of the straddle-type vehicle when the driver performs an operation.
- FIG. 11 is a diagram showing a fifth map.
- FIG. 12 is a diagram showing a sixth map.
- FIG. 13 is a flow chart showing the operation of the saddle-ride type vehicle of the second embodiment.
- FIG. 1 is a side view of a straddle-type vehicle 10 according to an embodiment of the invention.
- a straddle-type vehicle 10 includes a body frame 11, a power unit 12 supported by the body frame 11, a front fork 14 supporting a front wheel 13 in a steerable manner, a swing arm 16 supporting a rear wheel 15, and a passenger seat.
- the vehicle includes a seat 17 .
- the saddle-ride type vehicle 10 is a vehicle in which an occupant sits astride a seat 17 .
- the seat 17 is provided above the rear portion of the body frame 11 .
- the body frame 11 includes a head pipe 18 provided at the front end of the body frame 11 , a front frame 19 positioned behind the head pipe 18 , and a rear frame 20 positioned behind the front frame 19 .
- a front end portion of the front frame 19 is connected to the head pipe 18 .
- Seat 17 is supported by rear frame 20 .
- the front fork 14 is supported by a head pipe 18 so as to be steerable left and right.
- the front wheel 13 is supported by an axle 13 a provided at the lower end of the front fork 14 .
- a steering handle 21 gripped by a passenger is attached to the upper end of the front fork 14 .
- the swing arm 16 is supported by a pivot shaft 22 supported by the vehicle body frame 11 .
- the pivot shaft 22 is a shaft extending horizontally in the vehicle width direction.
- a pivot shaft 22 is inserted through the front end of the swing arm 16 .
- the swing arm 16 swings up and down around the pivot shaft 22 .
- the rear wheel 15 is supported by an axle 15 a provided at the rear end of the swing arm 16 .
- Power unit 12 is arranged between front wheel 13 and rear wheel 15 and supported by body frame 11 .
- Power unit 12 includes an engine.
- the power unit 12 includes a crankcase 23 and a cylinder portion 24 that houses reciprocating pistons.
- An exhaust device 25 is connected to an exhaust port of the cylinder portion 24 .
- the output of power unit 12 is transmitted to rear wheels 15 by a driving force transmission member that connects power unit 12 and rear wheels 15 .
- the straddle-type vehicle 10 also includes a front fender 26 that covers the front wheels 13 from above, a rear fender 27 that covers the rear wheels 15 from above, a step 28 on which the passenger puts his or her feet, and a fuel for storing the fuel used by the power unit 12. and a tank 29 .
- a front fender 26 is attached to the front fork 14 .
- the rear fender 27 and step 28 are provided below the seat 17 .
- the fuel tank 29 is supported by the vehicle body frame 11 .
- the straddle-type vehicle 10 includes front wheels 13 that are steered wheels, a suspension device 31, a steering wheel 21 that steers the steered wheels 13, and a steering damper 145 that applies torque in the steering direction to the suspension device 31 that supports the steered wheels 13. and a second control unit 150 .
- FIG. 2 is a block diagram showing the configuration of the tactile sense stimulation system 1. As shown in FIG. The configuration of the tactile sense stimulus device 50 and the configuration of the control system of the saddle-ride type vehicle 10 will be described with reference to FIG.
- the tactile stimulus device 50 is mounted on at least one of a helmet, gloves, and boots worn by the driver of the saddle-ride type vehicle 10 .
- FIG. 2 illustrates a case where the tactile sense stimulus device 50 includes five tactile sense stimulators 50A, 50B, 50C, 50D and 50E.
- the tactile sense stimulus device 50A is mounted on a helmet worn by the driver
- the tactile sense stimulators 50B and 50C are respectively mounted on the left and right gloves worn by the driver
- the tactile sense stimulators 50D and 50E are mounted on the driver's helmet. It is mounted on the boots to be worn.
- the tactile stimulus devices 50B and 50C are installed at positions that do not come into contact with the steering wheel 21, such as the back side of the driver's hand, when the driver wears gloves and gets on the saddle type vehicle 10.
- the tactile stimulus devices 50D and 50E are installed outside the boots that do not come into contact with the saddle-riding vehicle 10 when the driver wears the boots and gets on the saddle-riding vehicle 10 . This makes it easier to distinguish between the tactile stimulation by the tactile stimulation device 50 and the vibration of the saddle-ride type vehicle 10 .
- the tactile sense stimulus devices 50A, 50B, 50C, 50D, and 50E are collectively referred to as the tactile sense stimulus device 50.
- FIG. The same applies to the components of the tactile sense stimulus device 50 .
- the first control unit 53A, the first control unit 53B, the first control unit 53C, the first control unit 53D, and the first control unit 53E are collectively referred to as the first control unit 53.
- the tactile sense stimulation devices 50A, 50B, 50C, 50D and 50E have the same configuration, the configuration of the tactile sense stimulation device 50A will be described below.
- the tactile sense stimulation device 50A includes a first wireless communication section 51A, a first control section 53A, an electric air pump 55A and a balloon 57A.
- the first wireless communication unit 51A includes, for example, an interface circuit, which is hardware compatible with short-range wireless communication standards such as Wi-Fi (registered trademark) and Bluetooth (registered trademark).
- the first wireless communication unit 51A performs wireless communication with the saddle-ride type vehicle 10 and receives control signals transmitted from the saddle-ride type vehicle 10 .
- the first wireless communication unit 51A outputs the received control signal to the first control unit 53A.
- the first control unit 53A is an electronic control device that includes a processor such as a CPU (Central Processing Unit) or MPU (microprocessor unit), and a memory.
- a processor such as a CPU (Central Processing Unit) or MPU (microprocessor unit)
- MPU microprocessor unit
- the first control unit 53A drives the electric air pump 55A according to the control signal received from the saddle type vehicle 10. More specifically, the first controller 53A drives the electric air pump 55A so that the pressure inside the balloon 57A reaches the value of the actual drive pressure P included in the control signal.
- the actual driving pressure P will be described later.
- the electric air pump 55A sends air to the balloon 57A under the control of the first controller 53A.
- a configuration will be described in which a balloon 57A is inflated by an electric air pump 55A to provide a tactile sensation to the driver, but a vibrator may be used instead of the balloon 57A.
- the straddle-type vehicle 10 includes a navigation device 110, a first detection section 120, a second detection section 130, a pressure modulator 141, a throttle actuator 143, a steering damper 145, a second wireless communication section 147, and a second control section 150. .
- the first detector 120 is a detector that detects the state of the saddle-riding vehicle 10 .
- the first detection unit 120 includes an IMU (Inertial Measurement Unit) 121 , an engine speed sensor 123 , a wheel speed sensor 125 , a throttle grip opening sensor 127 and a throttle valve opening sensor 129 .
- the second detection unit 130 is a detection unit that detects the environment around the saddle-ride type vehicle 10, such as the outside air temperature.
- the second detector 130 includes an environment sensor that measures the environment around the saddle-ride type vehicle 10 .
- the second detection unit 130 of the present embodiment includes the outside air temperature sensor 131, but may be configured to include other environmental sensors.
- the navigation device 110 includes a GNSS (Global Navigation Satellite System) receiver, and calculates the latitude and longitude indicating the position of the saddle-ride type vehicle 10 based on the received GNSS signal.
- the navigation device 110 has map data, searches for a guide route to a destination set by the driver, and guides the saddle-riding vehicle 10 to travel along the searched guide route.
- the navigation device 110 outputs a notification signal to the second control unit 150 to notify that it is time to turn right or left.
- the IMU 121 detects the posture of the saddle-riding vehicle 10 .
- the IMU 121 detects, as the posture of the saddle-ride type vehicle 10, acceleration in the directions of three axes (front-rear, left-right, and up-down) and angular velocities in the directions of the three axes of pitch, roll, and yaw.
- the IMU 121 outputs sensor data indicating the detected accelerations and angular velocities in the three axial directions to the second control unit 150 .
- the second control unit 150 causes the memory 170 to store the input sensor data.
- the engine speed sensor 123 detects the engine speed and outputs sensor data indicating the detected speed to the second control unit 150 .
- the wheel speed sensor 125 detects the wheel speed of the drive wheels and outputs sensor data indicating the detected wheel speed to the second control unit 150 .
- the second control unit 150 causes the memory 170 to store the input sensor data.
- the throttle grip opening sensor 127 detects the opening of the throttle grip.
- the throttle grip opening sensor 127 outputs sensor data indicating the detected opening of the throttle grip to the second control unit 150 .
- a throttle valve opening sensor 129 detects the opening of the throttle valve.
- the throttle valve opening sensor 129 outputs sensor data indicating the detected opening of the throttle valve to the second control unit 150 .
- the second control unit 150 causes the memory 170 to store the input sensor data.
- the outside temperature sensor 131 of the second detection unit 130 measures the outside temperature and outputs sensor data indicating the measured outside temperature to the second control unit 150 .
- the second control unit 150 causes the memory 170 to store the input sensor data.
- the pressurization modulator 141 is a device that generates hydraulic pressure for actuating the hydraulic brake by the driving force of the actuator.
- the throttle actuator 143 is an actuator that adjusts the opening of the throttle valve according to throttle operation.
- the steering damper 145 is a damping device that applies damping torque to the suspension device 31 that supports the steered wheels 13 to suppress vibration of the steering wheel 21 .
- the second wireless communication unit 147 corresponds to a communication unit.
- it includes an interface circuit, which is a hardware circuit compatible with communication standards for short-range wireless communication such as Wi-Fi and Bluetooth, and performs data communication with the tactile stimulus device 50 .
- the second control unit 150 is an electronic control device that includes an input/output interface 160, a memory 170, a processor 180, and the like.
- the input/output interface 160 is connected to external devices such as the navigation device 110 shown in FIG.
- the input/output interface 160 is an interface circuit through which the second control unit 150 communicates with these external devices.
- the memory 170 includes RAM (Random Access Memory) and ROM (Read Only Memory).
- Memory 170 stores control program 171 , driving coaching data 172 , first map 173 , second map 174 , third map 175 , fourth map 176 , fifth map 177 and sixth map 178 .
- the control program 171 is a program executed by the processor 180 .
- the driving coaching data 172 is data used for instructing the driver by notifying the driver of the timing of acceleration and braking, etc., in order to drive the saddle-ride type vehicle 10 safely and with low fuel consumption.
- a detailed description of the first map 173, the second map 174, the third map 175, the fourth map 176, the fifth map 177 and the sixth map 178 will be given later.
- the processor 180 is composed of, for example, a CPU, an MPU, and the like.
- the processor 180 executes a control program 171 stored in the memory 170 to control each part of the saddle-ride type vehicle 10 .
- the second control unit 150 generates a control signal to be transmitted to the tactile stimulation device 300.
- the second control unit 150 transmits the generated control signal to the tactile sense stimulation device 300 .
- the control signal is a signal for operating the electric air pump 55 and inflating the balloon 57 .
- the second control unit 150 determines whether or not there is a notification to the driver. Further, when there is a notification to the driver, the second control unit 150 determines which of the following the notification type corresponds to. Notification types include five notifications, first notification to fifth notification.
- the first notification is a notification regarding the behavior of the vehicle. More specifically, it is a notification regarding the timing of applying the brakes to the rear wheels of the saddle-riding vehicle 10 to increase the load on the rear wheels while the saddle-riding vehicle 10 is turning.
- the second control unit 150 causes the pressure modulator 141 to brake the rear wheels to increase the load on the rear wheels while the saddle-ride type vehicle 10 is turning. As a result, the turning efficiency of the saddle-ride type vehicle 10 during turning operation can be improved.
- the second notification is a notification that notifies the driver that his attention has declined.
- the second control unit 150 determines that the body of the saddle-ride type vehicle 10 is wobbly based on the sensor data of the IMU 121, it determines that the concentration of the driver is declining, and the tactile stimulus device 300 generates It provides the driver with a tactile stimulus that
- the third notice is a notice regarding technical guidance for driving.
- the second control unit 150 operates the tactile sense stimulus device 300 when it determines that it is time to accelerate or brake, and provides the driver with the tactile sense stimulus generated by the tactile sense stimulus device 300.
- the fourth notification is a notification related to navigation and audio.
- the second control unit 150 operates the tactile sense stimulus device 300 when a notification signal notifying the right turn or left turn timing is input from the navigation device 110, and gives the driver a tactile sense stimulus generated by the tactile sense stimulus device 300. .
- the fifth notice is a notice when an e-mail is received.
- the second control unit 150 when the second control unit 150 is connected to the mobile terminal possessed by the driver and receives a notification signal notifying the reception of an e-mail from the mobile terminal, the second control unit 150 operates the tactile sense stimulation device 300.
- the tactile sense stimulus generated by the tactile sense stimulus device 300 is applied to the driver.
- the second control unit 150 determines that there is a notification to the driver and determines the notification type of the determined notification
- the second control unit 150 reads sensor data detected by the first detection unit 120 and the second detection unit 130 from the memory 170 .
- the second control unit 150 calculates the basic driving pressure Pb, the first correction coefficient Ks, the second correction coefficient Kt, and the third correction coefficient Ka based on the read sensor data.
- FIG. 3 is a diagram showing the first map 173.
- the first map 173 is a map that defines the relationship between the engine speed and the basic drive pressure Pb.
- the second control unit 150 refers to the map shown in FIG. 3 to acquire the basic drive pressure Pb.
- the basic drive pressure Pb is set so that the tactile sense stimulus provided to the driver by the tactile sense stimulus device 300 increases as the engine speed increases.
- a first curve 201 is a curve that defines the relationship between the engine speed and the basic drive pressure Pb when the notification type is the first notification.
- a second curve 202 is a curve that defines the relationship between the engine speed and the basic drive pressure Pb when the notification type is the second notification.
- a third curve 203 is a curve that defines the relationship between the engine speed and the basic drive pressure Pb when the notification type is the third notification.
- a fourth curve 204 is a curve that defines the relationship between the engine speed and the basic driving pressure Pb when the notification type is the fourth notification.
- a fifth curve 205 is a curve that defines the relationship between the engine speed and the basic drive pressure Pb when the notification type is the fifth notification.
- the basic driving pressure Pb of the first notification is set to be the largest.
- the basic driving pressure Pb is set to increase in order of the second notification, the third notification, and the fourth notification, and the basic driving pressure Pb of the fifth notification is set to be the smallest.
- the basic drive pressure Pb is set higher for notifications related to the driving operation of the saddle-ride type vehicle 10, such as the first notification regarding the behavior of the vehicle and the second notification regarding the decrease in driver's attention.
- all of the first curve 201 to the fifth curve 205 correspond to the first rotation speed R1, which is higher than the basic driving pressure Pb when the engine rotation speed is the first rotation speed R1.
- the basic drive pressure Pb is set to be large when the number of revolutions is 2 R2. As the number of rotations of the engine increases, it becomes more difficult for the driver to notice the tactile sensation given by the tactile sensation stimulation device 300 due to the vibration and sound of the engine. Therefore, the basic drive pressure Pb is set to increase as the engine speed increases.
- FIG. 4 is a diagram showing the second map 174.
- the second map 174 is a map that defines the relationship between the vehicle speed and the first correction coefficient Ks.
- the first correction coefficient Ks is a coefficient for correcting the basic drive pressure Pb.
- the second control unit 150 calculates the vehicle speed of the saddle-ride type vehicle 10 based on the wheel speed detected by the wheel speed sensor 125 .
- Second control unit 150 refers to second map 174 based on the calculated vehicle speed, and acquires first correction coefficient Ks corresponding to the vehicle speed.
- the value of the first correction coefficient Ks when the vehicle speed is the first vehicle speed V1 is smaller than the value of the first correction coefficient Ks when the vehicle speed is the second vehicle speed V2 higher than the first vehicle speed V1.
- the larger the value of the first correction coefficient Ks the larger the value set as the actual driving pressure P to be notified to the haptic stimulation device 300. Therefore, the actual driving pressure P when the vehicle speed is the second vehicle speed V2 is greater than the actual driving pressure P when the vehicle speed is the first vehicle speed V1.
- the second map 174 sets the vehicle speed and the first correction coefficient Ks so that the first correction coefficient Ks is a constant value regardless of changes in the vehicle speed at a third vehicle speed V3 or higher, which is higher than the second vehicle speed V2. relationship is stipulated.
- FIG. 5 is a diagram showing the third map 175.
- the third map 175 is a map that defines the relationship between the outside air temperature and the second correction coefficient Kt, as shown in FIG.
- the second correction coefficient Kt is a coefficient for correcting the basic drive pressure Pb.
- the second control unit 150 refers to the third map 175 based on the outside temperature detected by the outside temperature sensor 131, and obtains the second correction coefficient Kt corresponding to the outside temperature.
- the value of the second correction coefficient Kt when the outside temperature is the first outside temperature T1 is higher than the value of the second correction coefficient Kt when the outside temperature is the second outside temperature T2 lower than the first outside temperature T1. small.
- the larger the value of the second correction coefficient Kt the larger the value of the actual driving pressure P notified to the haptic stimulation device 300. Therefore, the actual driving pressure P when the outside temperature is the second outside temperature T2 is greater than the actual driving pressure P when the outside air temperature is the first outside air temperature T1.
- the third map 175 is designed so that when the outside temperature is equal to or higher than a third outside temperature T3, which is higher than the first outside temperature T1, the second correction coefficient Kt is a constant value regardless of changes in the outside temperature. 2
- the relationship with the correction coefficient Kt is defined.
- FIG. 6 is a diagram showing the fourth map 176.
- the fourth map 176 is a map that defines the relationship between the acceleration and the third correction coefficient Ka, as shown in FIG.
- the third correction coefficient Ka is a coefficient for correcting the basic drive pressure Pb.
- the second control unit 150 refers to the fourth map 176 based on the acceleration in the traveling direction of the saddle-riding vehicle 10 detected by the IMU 121, and acquires the third correction coefficient Ka corresponding to the acceleration.
- the value of the third correction coefficient Ka when the acceleration of the straddle-type vehicle 10 is the first acceleration A1 is greater than the value of the third correction coefficient Ka when the acceleration is the second acceleration A2 larger than the first acceleration A1. is also small.
- the larger the value of the third correction coefficient Ka the larger the value of the actual drive pressure P to be notified to the haptic stimulation device 300 . Therefore, the actual drive pressure P when the acceleration is the second acceleration A2 is greater than the actual drive pressure P when the acceleration is the first acceleration A1.
- the fourth map 176 sets the acceleration and the third correction coefficient Ka so that the third correction coefficient Ka is a constant value regardless of changes in the acceleration at a third acceleration A3 or higher, which is higher than the second acceleration A21. relationship is stipulated.
- the second control unit 150 drives the electric air pump 55 based on these obtained values.
- An actual driving pressure P which is the actual pressure injected into the balloon 57, is calculated.
- the actual driving pressure P is calculated by multiplying the basic driving pressure Pb, the first correction coefficient Ks, the second correction coefficient Kt, and the third correction coefficient Ka. Therefore, the value of the actual driving pressure P increases as the values of the first correction coefficient Ks, the second correction coefficient Kt, and the third correction coefficient Ka increase.
- the second control unit 150 generates a control signal including the calculated value of the actual driving pressure P.
- the second control unit 150 transmits the generated control signal to the tactile sense stimulation device 300 .
- the first control unit 53 Upon receiving the control signal from the saddle-ride type vehicle 10, the first control unit 53 acquires the actual drive pressure P indicated by the received control signal. The first control unit 53 drives the electric air pump 55 based on the acquired actual drive pressure P. As a result, the balloon 57 is inflated so that the pressure inside the balloon 57 becomes the actual driving pressure P.
- FIG. 7 is a flow chart showing the operation of the second control unit 150. As shown in FIG. The operation of the second control unit 150 will be described with reference to the flowchart shown in FIG. First, the second control unit 150 determines whether or not a notification to the driver has occurred (step S1). When the second control unit 150 determines that the notification to the driver has not occurred (step S1/NO), it waits until the notification occurs.
- the second control unit 150 determines that the notification to the driver has occurred (step S1/YES).
- the second control unit 150 determines the type of notification that has occurred (step S2).
- the second control unit 150 acquires sensor data from the memory 170 (step S3).
- the sensor data includes sensor data detected by IMU 121 , engine speed sensor 123 , wheel speed sensor 125 and outside air temperature sensor 131 .
- the second control unit 150 acquires the basic driving pressure Pb (step S4).
- the second control unit 150 refers to the second map 174 based on the vehicle speed acquired as sensor data, and acquires the first correction coefficient Ks corresponding to the vehicle speed.
- the second control unit 150 acquires the first correction coefficient Ks (step S5).
- the second control unit 150 refers to the second map 174 based on the vehicle speed acquired as sensor data, and acquires the first correction coefficient Ks corresponding to the vehicle speed.
- the second control unit 150 acquires the second correction coefficient Kt (step S6).
- the second control unit 150 refers to the third map 175 based on the outside air temperature acquired as sensor data, and acquires the second correction coefficient Kt corresponding to the outside air temperature.
- the second control unit 150 acquires the third correction coefficient Ka (step S7).
- the second control unit 150 refers to the fourth map 176 based on the acceleration acquired as sensor data, and acquires the third correction coefficient Ka corresponding to the acceleration.
- the second control section 150 calculates the actual drive pressure P (step S8).
- the second control unit 150 calculates the actual driving pressure P by integrating the basic driving pressure Pb, the first correction coefficient Ks, the second correction coefficient Kt, and the third correction coefficient Ka.
- the second control unit 150 generates a control signal that notifies the value of the actual drive pressure P (step S9).
- the second control unit 150 transmits the generated control signal to the tactile sense stimulation device 300 (step S10).
- the saddle-ride type vehicle 10 of the second embodiment is intended to prevent the behavior of the saddle-ride type vehicle 10 from becoming unstable due to an unintended operation by the driver.
- FIG. 8 is a conventional signal waveform diagram showing the behavior of the saddle-ride type vehicle 10 when the control signal is output.
- FIG. 8 shows the control signal output (A), the throttle grip opening (B), the throttle valve opening (C), the change in pitching angle (D), and the deflection of the steering wheel 21 (F). show.
- the driver receives a tactile stimulus due to inflation of the balloon 57 .
- the driver may unintentionally operate the throttle grip if the received tactile stimulus is unintended.
- the throttle grip opening is temporarily increased as shown in FIG. 8(B).
- the opening of the throttle valve is also increased as shown in FIG. This causes a change in the pitching angle as shown in FIG. 8(D).
- the change in pitching angle causes the steering wheel 21 to swing as shown in FIG. 8(F).
- the second control unit 150 performs the following control. First, even if the second control unit 150 receives an operation of the throttle grip for a certain period of time from the output of the control signal, it reduces the change in the throttle valve opening in response to the received operation. Hereinafter, the certain period of time will be referred to as a determination period. Further, the second control unit 150 causes the steering damper 145 to generate a damping torque to suppress the shaking of the steering wheel 21 from the output of the control signal until the determination period elapses.
- FIG. 9 is a signal waveform diagram showing the behavior of the vehicle body of the straddle-type vehicle 10 when the control signal is output in the second embodiment.
- FIG. 9 shows the control signal output (A), the throttle grip opening (B), the throttle valve opening (C), the pitching angle change (D), and the damping torque of the steering damper 145 (E). , and deflection (F) of the steering wheel 21 .
- control is performed to reduce the amount of change in the throttle valve opening relative to the amount of operation of the throttle grip. Specifically, an upper limit is set for the change speed of the throttle valve opening, and the amount of change in the throttle valve opening is reduced so that the change speed of the throttle valve opening does not exceed this upper limit. This reduces the change in the throttle valve opening as shown in FIG. 9(C). Further, by generating a damping torque with the steering damper 145 as shown in FIG. 9(E), as shown in FIG. 9(F), the shake of the steering wheel 21 is suppressed.
- FIG. 10 is a diagram showing the behavior of the straddle-type vehicle 10 when the driver intentionally operates the throttle grip in response to the control signal.
- FIG. 10 also shows the output of the control signal (A), the throttle grip opening (B), the throttle valve opening (C), the pitching angle change (D), and the damping torque of the steering damper 145 (E). , and deflection (F) of the steering wheel 21 .
- the second control unit 150 determines whether or not the throttle grip opening is equal to or greater than a preset threshold during the period from when the control signal is transmitted to the tactile sense stimulation device 300 until the determination period elapses.
- the second control unit 150 performs control to reduce the rate of change of the throttle valve opening relative to the operation of the throttle grip. Stop before it runs out.
- the second control unit 150 determines that the driver has intentionally operated the throttle grip, and stops the control for reducing the rate of change of the throttle valve opening relative to the operation of the throttle grip.
- Time s shown in FIG. 10 is the timing at which the throttle grip opening exceeds a preset threshold value and the control for reducing the rate of change of the throttle valve opening relative to the operation of the throttle grip is stopped.
- the amount of increase in the pitching angle also changes before time s and after time s. Since the control for reducing the rate of change of the throttle valve opening relative to the operation of the throttle grip is stopped, the amount of increase in the pitching angle increases after time s. Further, until the time s shown in FIG. 10(E), the steering damper 145 is caused to generate damping torque, and after the time s, the damping torque generated by the steering damper 145 is reduced. As shown, after time s, the swing of the steering wheel 21 increases.
- FIG. 11 is a diagram showing the fifth map 177.
- the fifth map 177 as shown in FIG. 11, is a map that defines the relationship between the absolute value of the roll angle of the vehicle body of the saddle-ride type vehicle 10 and the upper limit value of the change speed of the throttle valve opening.
- the relationship between the absolute value of the roll angle of the vehicle body and the upper limit value of the change speed of the throttle valve opening is registered for each of the first notification to the fifth notification.
- the second control unit 150 refers to the fifth map 177 based on the absolute value of the roll angle of the vehicle body detected by the IMU 121 and the type of notification, and acquires the upper limit value of the change speed of the throttle valve opening.
- the second control unit 150 controls the throttle valve opening so that the change speed of the throttle valve opening detected by the throttle valve opening sensor 129 does not exceed the acquired upper limit value of the change speed.
- a first curve 211 is a curve that defines the upper limit of the change speed of the throttle valve opening when the notification type is the first notification.
- a second curve 212 is a curve that defines the upper limit of the change speed of the throttle valve opening when the notification type is the second notification.
- a third curve 213 is a curve that defines the upper limit of the change speed of the throttle valve opening when the notification type is the third notification.
- a fourth curve 214 defines the upper limit of the change speed of the throttle valve opening when the notification type is the fourth notification.
- a fifth curve 215 is a curve that defines the upper limit of the change speed of the throttle valve opening when the notification type is the fifth notification.
- the upper limit value of the change speed of the throttle valve opening is set to be lower for a notification such as the first notification or the second notification in which the basic drive pressure Pb is set higher.
- the stronger the tactile stimulus is notified, the lower the upper limit value of the change speed of the throttle valve opening, suppressing the driver's unintended operation and stabilizing the behavior of the straddle-type vehicle 10. can be done.
- the upper limit value of the change speed of the throttle valve opening is set larger as the absolute value of the roll angle of the vehicle body of the straddle-type vehicle 10 becomes smaller, and becomes smaller as the absolute value of the roll angle becomes larger. is set to When the absolute value of the roll angle of the vehicle body of the saddle-riding type vehicle 10 is large and the saddle-riding type vehicle 10 is in an unstable state, the upper limit of the change speed of the throttle valve opening is set small, whereby the saddle-riding type vehicle 10 is stabilized. behavior can be stabilized.
- FIG. 12 is a diagram showing the sixth map 178.
- the sixth map 178 is a map that defines the relationship between the absolute value of the roll angle of the body of the straddle-type vehicle 10 and the damping torque generated by the steering damper 145, as shown in FIG.
- a sixth map 178 shown in FIG. 12 registers the relationship between the absolute value of the roll angle of the body of the straddle-type vehicle 10 and the damping torque generated in the steering damper 145 for each of the first to fifth notifications.
- It is Second control unit 150 refers to sixth map 178 based on the absolute value of the roll angle of the vehicle body detected by IMU 121 and the type of notification, and acquires the value of the damping torque to be generated in steering damper 145 .
- a first curve 221 is a curve representing damping torque generated in the steering damper 145 when the notification type is the first notification.
- a second curve 222 is a curve showing damping torque generated in the steering damper 145 when the notification type is the second notification.
- a third curve 223 is a curve showing the damping torque generated in the steering damper 145 when the notification type is the third notification.
- a fourth curve 224 is a curve showing the damping torque generated in the steering damper 145 when the notification type is the fourth notification.
- a fifth curve 225 is a curve showing damping torque generated in the steering damper 145 when the notification type is the fifth notification.
- the damping torque generated in the steering damper 145 is set such that the smaller the absolute value of the roll angle of the vehicle body of the saddle type vehicle 10, the larger the damping torque value.
- the value is set to be small.
- FIG. 13 is a flow chart showing the operation of the second control section 150 of the second embodiment.
- the operation of the second control unit 150 will be described with reference to the flowchart shown in FIG. Since the operations of steps T1 to T7 shown in FIG. 13 are the same as the operations of the second control unit 150 of the first embodiment shown in FIG. 7, detailed description thereof will be omitted.
- the second control unit 150 After acquiring the third correction coefficient Ka (step T7), the second control unit 150 acquires the upper limit value of the change speed of the throttle valve opening by referring to the fifth map 177 (step T8).
- the second control unit 150 refers to the fifth map 177 based on the absolute value of the roll angle of the vehicle body and the type of notification determined in step T2, and acquires the upper limit value of the change speed of the throttle valve opening (step T8).
- the second control unit 150 acquires the value of the damping torque to be generated in the steering damper 145 by referring to the sixth map 178 (step T9).
- the sixth map 178 is referenced based on the value and the notification type determined in step T2, and the value of the damping torque to be generated in the steering damper 145 is obtained (step T9).
- the second control unit 150 multiplies the basic driving pressure Pb acquired in steps T4 to T7, the first correction coefficient Ks, the second correction coefficient Kt, and the third correction coefficient Ka to obtain the actual driving pressure.
- a pressure P is calculated (step T10).
- the second control unit 150 generates a control signal for notifying the calculated actual driving pressure P (step T11), and transmits the generated control signal to the tactile sense stimulation device 300 (step T12).
- the second control unit 150 limits the throttle valve opening so that the rate of change of the throttle valve opening with respect to the manipulated variable of the throttle grip does not exceed the upper limit acquired in step T8 (step T13).
- the second control unit 150 acquires the throttle grip opening detected by the throttle grip opening sensor 127 and the throttle valve opening detected by the throttle valve opening sensor 129 .
- the second control unit 150 calculates the operation amount of the throttle grip based on the detected throttle grip opening.
- the second control unit 150 changes the throttle valve opening based on the calculated operation amount, but restricts the throttle valve opening so that the rate of change of the throttle valve opening does not exceed the upper limit acquired in step T8. (step T13).
- the second control unit 150 causes the steering damper 145 to generate the damping torque acquired in step T9 (step T14).
- the second control unit 150 determines whether or not the throttle grip operation amount detected by the throttle grip opening sensor 127 has reached or exceeded a threshold value (step T15). When the amount of operation of the throttle grip is equal to or greater than the threshold value (step T15/YES), the second control unit 150 releases the restriction on the operating speed of the throttle valve (step T17), and the damping torque is applied to the steering damper 145. Terminate generation (step T18).
- step T15/NO determines that the operation amount of the throttle grip is not equal to or greater than the threshold value (step T15/NO).
- the elapsed time from the transmission of the control signal to the tactile sense stimulation device 300 is the determination period. has passed (step T16). If the elapsed time has not passed the determination period (step T16/NO), the second control unit 150 returns to the determination of step T15.
- the second control unit 150 cancels the restriction on the operating speed of the throttle valve (step T17). Further, the second control unit 150 causes the steering damper 145 to stop generating the damping torque (step T18).
- the vehicle 10 is a motorcycle that is not a scooter type. It may be a saddle type vehicle or a four-wheeled vehicle.
- a straddle-type vehicle a communication unit that communicates with a tactile stimulus device that provides a tactile stimulus to a driver, and a control signal that controls the tactile stimulus device so that the tactile stimulus device can perform the driving.
- a control section for controlling the magnitude of a tactile sense stimulus given to a person, and a first detection section for detecting a state of the saddle-riding type vehicle, wherein the control section controls the saddle riding detected by the first detection section.
- a saddle-ride type vehicle wherein the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulus device is changed based on the state of the saddle type vehicle. According to this configuration, the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulus device is changed according to the state of the saddle type vehicle. Even in the state, it is possible to improve the accuracy of information notification by tactile stimulation.
- the first detection section detects the number of rotations of an engine of the saddle-ride type vehicle, and the control section detects that the number of rotations of the engine detected by the first detection section is the first number of rotations.
- the number of rotations of the engine increases, it becomes more difficult for the driver to receive information through tactile stimulation due to the influence of vibration and sound of the engine.
- the tactile sense stimulus is such that the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulus device is increased when the number of revolutions of the engine is the second number of revolutions, which is higher than the first number of revolutions. Since the device is controlled, the accuracy of information notification by tactile stimulation can be improved.
- the first detection section detects the vehicle speed of the straddle-type vehicle, and the control section controls the tactile sense stimulation device to detect the vehicle speed when the vehicle speed detected by the first detection section is the first vehicle speed.
- the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulation device is greater than the magnitude of the tactile sense stimulus given to the driver when the vehicle speed detected by the first detection unit is a second vehicle speed higher than the first vehicle speed.
- a saddle-ride type vehicle according to configuration 1 or 2 characterized in that the tactile sense stimulus device is controlled such that the tactile sense stimulus device is increased. As the vehicle speed of the saddle-ride type vehicle increases, it becomes more difficult for the driver to receive information from the tactile stimulus due to the influence of running wind. According to this configuration, when the vehicle speed is the second vehicle speed higher than the first vehicle speed, the tactile stimulus device controls the magnitude of the tactile stimulus given to the driver by the tactile stimulus device. The accuracy of information notification can be improved.
- the first detection unit detects acceleration of the saddle-ride type vehicle, and the control unit causes the tactile sense stimulus device to detect the acceleration when the acceleration detected by the first detection unit is the first acceleration.
- the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulation device when the acceleration detected by the first detection unit is a second acceleration larger than the first acceleration.
- the saddle-ride type vehicle according to any one of configurations 1 to 3, wherein the tactile sense stimulus device is controlled so that the tactile sense stimulus increases.
- the tactile sense stimulation device is controlled so that the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulus device increases when the acceleration is the second acceleration that is greater than the first acceleration. The accuracy of information notification can be improved.
- a second detection section for detecting an outside air temperature around the straddle-type vehicle is provided, and the control section controls the tactile sensation when the outside temperature detected by the second detection section is the first outside temperature.
- the tactile sense stimulation device causes the driving.
- the straddle-type vehicle according to any one of configurations 1 to 4, wherein the tactile sense stimulus device is controlled so as to increase the magnitude of the tactile sense stimulus given to the person. The lower the outside air temperature, the more difficult it is for the driver to receive information from tactile stimulation.
- the tactile sense stimulus device is controlled so that the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulus device increases when the outside temperature is the second outside temperature lower than the first outside temperature. It is possible to improve the accuracy of information notification by tactile stimulation.
- the notification to the driver by tactile stimulation includes a first notification that is a notification regarding the behavior of the vehicle, a second notification that notifies the driver's attention decline, and a driving technical guidance.
- the saddle-ride type vehicle according to any one of configurations 1 to 5, wherein the magnitude of the tactile sense stimulus for notification is changed respectively. According to this configuration, since the magnitude of the tactile sense stimulus is changed when notifying the first notification, the second notification, the third notification and the fourth notification, the driver is notified of the first notification, the second notification and the third notification.
- the notification and the fourth notification can be recognized by tactile stimulation.
- a tactile sense stimulation system comprising a tactile sense stimulus device that provides a tactile sense stimulus to a driver, and a saddle-ride type vehicle, wherein the saddle-ride type vehicle includes a communication unit that communicates with the tactile sense stimulus device, and the tactile sense stimulus.
- a control unit for transmitting a control signal for controlling a stimulus device to control the magnitude of the tactile stimulus given to the driver by the tactile stimulus device; a first detection unit for detecting a state of the saddle-ride type vehicle; wherein the controller changes the magnitude of the tactile stimulus given to the driver by the tactile stimulus device based on the state of the straddle-type vehicle detected by the first detector, and the tactile stimulus device , a tactile stimulation system mounted on at least one of a helmet, gloves, and boots worn by the driver.
- the magnitude of the tactile sense stimulus given to the driver by the tactile sense stimulus device is changed according to the state of the saddle type vehicle. Even in the state, it is possible to improve the accuracy of information notification by tactile stimulation.
- the tactile sense stimulus device can be arranged at a site where it is easy to recognize that the tactile sense stimulus is being received.
- the processing of the second control unit 150 can be divided into more processing units according to the processing content, or can be divided so that one processing unit includes more processing. Also, the processing order of the above flowchart is not limited to the illustrated example.
- tactile sense stimulation system 10 saddle type vehicle 50 tactile sense stimulus device 51 first wireless communication unit 53 first control unit 55 electric air pump 57 balloon 110 navigation device 117 wheel speed sensor 120 first detection unit 121 IMU 125 wheel speed sensor 127 throttle grip opening sensor 129 throttle valve opening sensor 130 second detector 131 outside air temperature sensor 141 pressure modulator 143 throttle actuator 145 steering damper 147 second wireless communication unit 150 second control unit 160 input/output interface 170 memory 171 control program 172 driving coaching data 173 first map 174 second map 175 third map 176 fourth map 177 fifth map 177 sixth map 178 eighth map 178 sixth map 180 processor
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Abstract
Description
例えば、特許文献1は、運転者の左手又は右手に対して前方又は後方の圧力を触覚刺激として付与することにより、前記運転者に情報を伝達する触覚刺激アクチュエータを備える鞍乗型車両を開示する。
本発明は、上述した事情に鑑みてなされたものであり、触覚刺激による情報通知の精度の低下を抑制することを目的とする。
本発明の一態様は、鞍乗り型車両(10)であって、運転者に触覚刺激を与える触覚刺激装置(50)と通信する通信部(147)と、前記触覚刺激装置(50)を制御する制御信号を送信して、前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさを制御する制御部(150)と、前記鞍乗り型車両の状態を検出する第1検出部(120)と、を備え、前記制御部(150)は、前記第1検出部(120)が検出した前記鞍乗り型車両(10)の状態に基づき、前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさを変更することを特徴とする鞍乗り型車両(10)である。
図1は、本発明の実施の形態に係る鞍乗り型車両10の側面図である。
鞍乗り型車両10は、車体フレーム11と、車体フレーム11に支持されるパワーユニット12と、前輪13を操舵自在に支持するフロントフォーク14と、後輪15を支持するスイングアーム16と、乗員用のシート17とを備える車両である。
鞍乗り型車両10は、乗員がシート17に跨るようにして着座する車両である。シート17は、車体フレーム11の後部の上方に設けられる。
シート17は、リアフレーム20に支持される。
後輪15は、スイングアーム16の後端部に設けられる車軸15aに支持される。
パワーユニット12は、エンジンを含む。パワーユニット12は、クランクケース23と、往復運動するピストンを収容するシリンダー部24とを備える。シリンダー部24の排気ポートには、排気装置25が接続される。
パワーユニット12の出力は、パワーユニット12と後輪15とを接続する駆動力伝達部材によって後輪15に伝達される。
フロントフェンダー26は、フロントフォーク14に取り付けられる。リアフェンダー27及びステップ28は、シート17よりも下方に設けられる。燃料タンク29は、車体フレーム11に支持される。
図2は、触覚刺激システム1の構成を示すブロック図である。
図2を参照しながら触覚刺激装置50の構成と、鞍乗り型車両10の制御系の構成とについて説明する。
触覚刺激装置50は、鞍乗り型車両10の運転者が着用するヘルメットやグローブ、ブーツの少なくとも1つに搭載される。
図2には、触覚刺激装置50が、触覚刺激装置50A、50B、50C、50D及び50Eの5つを備える場合を例示するが、運転者に搭載される触覚刺激装置50の数は5つに限定されない。例えば、触覚刺激装置50Aは、運転者の装着するヘルメットに搭載され、触覚刺激装置50B及び50Cは、運転者の装着する左右のグローブにそれぞれ搭載され、触覚刺激装置50D及び50Eは、運転者の装着するブーツに搭載される。触覚刺激装置50B及び50Cは、運転者がグローブを装着し、鞍乗り型車両10に搭乗した状態において、運転者の手の甲側等のハンドル21とは接触しない位置に設置される。触覚刺激装置50D及び50Eは、運転者がブーツを装着し、鞍乗り型車両10に搭乗した状態において、鞍乗り型車両10とは接触しないブーツの外側に設置される。これにより、触覚刺激装置50による触覚刺激と、鞍乗り型車両10の振動との区別が容易になる。
また、図2の説明では、触覚刺激装置50A、50B、50C、50D及び50Eは同一の構成を備えるため、以下のでは、触覚刺激装置50Aの構成について説明する。
鞍乗り型車両10は、ナビゲーション装置110、第1検出部120、第2検出部130、加圧モジュレータ141、スロットルアクチュエータ143、ステアリングダンパ145、第2無線通信部147及び第2制御部150を備える。
第2検出部130は、鞍乗り型車両10の周囲の外気温等の環境を検出する検出部である。第2検出部130は、鞍乗り型車両10の周囲の環境を測定する環境センサを備える。本実施形態の第2検出部130は、外気温センサ131を備えるが、他の環境センサを備える構成であってもよい。
ナビゲーション装置110は、鞍乗り型車両10が右折や左折等のタイミングになると、右折や左折のタイミングであることを通知する通知信号を第2制御部150に出力する。
メモリ170は、制御プログラム171、運転コーチングデータ172、第1マップ173、第2マップ174、第3マップ175、第4マップ176、第5マップ177及び第6マップ178を記憶する。
運転コーチングデータ172は、鞍乗り型車両10を安全に、かつ低燃費で走行させるために、運転者にアクセルやブレーキのタイミング等を通知して運転者を指導するために用いるデータである。
第1マップ173、第2マップ174、第3マップ175、第4マップ176、第5マップ177及び第6マップ178についての詳細な説明は後述する。
第2制御部150は、読み出したセンサデータに基づき、基本駆動圧力Pb、第1補正係数Ks、第2補正係数Kt、及び第3補正係数Kaを算出する。
図3に示すように第1マップ173は、エンジン回転数と、基本駆動圧力Pbとの関係を規定したマップである。第2制御部150は、エンジン回転数センサ123が検出したエンジン回転数に基づき、図3に示すマップを参照して基本駆動圧力Pbを取得する。エンジン回転数が上がるほど、鞍乗り型車両10の振動は大きくなる。このため、エンジン回転数が上がるほど、触覚刺激装置300が運転者に付与する触覚刺激が大きくなるように、基本駆動圧力Pbが設定されている。
第1曲線201は、通知種類が第1通知である場合のエンジン回転数と、基本駆動圧力Pbとの関係を規定する曲線である。
第2曲線202は、通知種類が第2通知である場合のエンジン回転数と、基本駆動圧力Pbとの関係を規定する曲線である。
第3曲線203は、通知種類が第3通知である場合のエンジン回転数と、基本駆動圧力Pbとの関係を規定する曲線である。
第4曲線204は、通知種類が第4通知である場合のエンジン回転数と、基本駆動圧力Pbとの関係を規定する曲線である。
第5曲線205は、通知種類が第5通知である場合のエンジン回転数と、基本駆動圧力Pbとの関係を規定する曲線である。
エンジンの回転数が大きくなるほど、エンジンの振動や音により運転者が触覚刺激装置300の付与する触覚刺激に気がつき難くなる。このため、エンジン回転数が大きくなるほど、基本駆動圧力Pbが大きくなるように設定している。
図4に示すように、第2マップ174は、車速と、第1補正係数Ksとの関係を規定したマップである。第1補正係数Ksは、基本駆動圧力Pbを補正する係数である。第2制御部150は、車輪速センサ125が検出した車輪速に基づいて鞍乗り型車両10の車速を算出する。第2制御部150は、算出した車速に基づいて第2マップ174を参照し、車速に対応する第1補正係数Ksを取得する。
第3マップ175は、図5に示すように外気温と、第2補正係数Ktとの関係を規定したマップである。第2補正係数Ktは、基本駆動圧力Pbを補正する係数である。第2制御部150は、外気温センサ131が検出した外気温に基づいて第3マップ175を参照し、外気温に対応する第2補正係数Ktを取得する。
第4マップ176は、図6に示すように加速度と、第3補正係数Kaとの関係を規定したマップである。第3補正係数Kaは、基本駆動圧力Pbを補正する係数である。
第2制御部150は、IMU121が検出した鞍乗り型車両10の進行方向の加速度に基づいて第4マップ176を参照し、加速度に対応する第3補正係数Kaを取得する。
P=Pb・Ks・Ks・Ka・・・(1)
図7は、第2制御部150の動作を示すフローチャートである。
図7に示すフローチャートを参照しながら第2制御部150の動作について説明する。
まず、第2制御部150は、運転者への通知が発生したか否かを判定する(ステップS1)。第2制御部150は、運転者への通知が発生していないと判定した場合(ステップS1/NO)、通知が発生するまで待機する。
次に、第2制御部150は、センサデータをメモリ170から取得する(ステップS3)。センサデータには、IMU121、エンジン回転数センサ123、車輪速センサ125、外気温センサ131が検出したセンサデータが含まれる。
第2制御部150は、基本駆動圧力Pbと、第1補正係数Ksと、第2補正係数Ktと、第3補正係数Kaとを積算して実駆動圧力Pを算出する。
次に、第2実施形態について説明する。なお、第2実施形態の鞍乗り型車両10の構成は、上述した第1実施形態の鞍乗り型車両10と同一であるため、鞍乗り型車両10の構成についての説明は省略する。
図8には、制御信号の出力(A)と、スロットルグリップ開度(B)と、スロットルバルブ開度(C)と、ピッチング角の変化(D)と、ハンドル21の振れ(F)とを示す。
第2制御部150から制御信号が送信されることで、運転者は、バルーン57の膨張による触覚刺激を受ける。運転者は、受けた触覚刺激が意図しない刺激であった場合、スロットルグリップを意図せず操作してしまう場合がある。この場合、図8(B)に示すようにスロットルグリップ開度が一時的に大きくなる。また、スロットルグリップ開度が大きくなることで、図8(C)に示すように、スロットルバルブ開度も大きくなり、鞍乗り型車両10に駆動力が発生する。これにより、図8(D)に示すように、ピッチング角に変化が生じる。また、ピッチング角に変化が生じることで、図8(F)に示すようにハンドル21振れが生じる。
まず、第2制御部150は、制御信号の出力から一定時間の間、スロットルグリップの操作を受けても、受け付けた操作に対するスロットルバルブ開度の変化を低減する。以下、一定時間を判定期間という。
また、第2制御部150は、制御信号の出力から判定期間が経過するまでの間、ステアリングダンパ145により減衰トルクを発生させ、ハンドル21の振れを抑制する。
第2制御部150は、触覚刺激装置300に制御信号を送信してから判定期間が経過するまでの間、スロットルグリップ開度が予め設定されたしきい値以上となったか否かを判定する。第2制御部150は、判定期間が経過する前に、スロットルグリップ開度がしきい値以上になった場合、スロットルグリップの操作に対するスロットルバルブ開度の変化速度を低減させる制御を、判定期間が経過する前に停止させる。第2制御部150は、運転者がスロットルグリップを意図して操作したと判定し、スロットルグリップの操作に対するスロットルバルブ開度の変化速度を低減させる制御を停止させる。
また、図10(E)に示す時刻sまでは、ステアリングダンパ145に減衰トルクを発生させ、時刻sよりも後では、ステアリングダンパ145に発生させる減衰トルクを低減させるため、図10(F)に示すように時刻sよりも後では、ハンドル21の振れが大きくなる。
第5マップ177は、図11に示すように鞍乗り型車両10の車体のロール角の絶対値と、スロットルバルブ開度の変更速度の上限値との関係を規定したマップである。第5マップ177には、車体のロール角の絶対値と、スロットルバルブ開度の変更速度の上限値との関係が、第1通知~第5通知の通知ごとに登録されている。
第2制御部150は、IMU121が検出した車体のロール角の絶対値と、通知種類とに基づいて第5マップ177を参照し、スロットルバルブ開度の変更速度の上限値を取得する。第2制御部150は、スロットルバルブ開度センサ129が検出するスロットルバルブ開度の変更速度が、取得した変更速度の上限値を超えないようにスロットルバルブ開度を制御する。
第5マップ177には、第1曲線211、第2曲線212、第3曲線213、第4曲線214及び第5曲線215の5つの曲線が登録される。
第1曲線211は、通知種類が第1通知である場合のスロットルバルブ開度の変更速度の上限値を規定する曲線である。
第2曲線212は、通知種類が第2通知である場合のスロットルバルブ開度の変更速度の上限値を規定する曲線である。
第3曲線213は、通知種類が第3通知である場合のスロットルバルブ開度の変更速度の上限値を規定する曲線である。
第4曲線214は、通知種類が第4通知である場合のスロットルバルブ開度の変更速度の上限値を規定する曲線である。
第5曲線215は、通知種類が第5通知である場合のスロットルバルブ開度の変更速度の上限値を規定する曲線である。
第6マップ178は、図12に示すように鞍乗り型車両10の車体のロール角の絶対値と、ステアリングダンパ145により発生させる減衰トルクとの関係を規定したマップである。図12に示す第6マップ178は、鞍乗り型車両10の車体のロール角の絶対値と、ステアリングダンパ145に発生させる減衰トルクとの関係が、第1通知~第5通知の通知ごとに登録されている。
第2制御部150は、IMU121が検出した車体のロール角の絶対値と、通知種類とに基づいて第6マップ178を参照し、ステアリングダンパ145に発生させる減衰トルクの値を取得する。
第6マップ178には、第1曲線221、第2曲線222、第3曲線223、第4曲線224及び第5曲線225の5つの曲線が登録される。
第1曲線221は、通知種類が第1通知である場合にステアリングダンパ145に発生させる減衰トルクを示す曲線である。
第2曲線222は、通知種類が第2通知である場合にステアリングダンパ145に発生させる減衰トルクを示す曲線である。
第3曲線223は、通知種類が第3通知である場合にステアリングダンパ145に発生させる減衰トルクを示す曲線である。
第4曲線224は、通知種類が第4通知である場合にステアリングダンパ145に発生させる減衰トルクを示す曲線である。
第5曲線225は、通知種類が第5通知である場合にステアリングダンパ145に発生させる減衰トルクを示す曲線である。
図13は、第2実施形態の第2制御部150の動作を示すフローチャートである。
図13に示すフローチャートを参照しながら第2制御部150の動作を説明する。図13に示すステップT1~T7の動作は、図7に示す第1実施形態の第2制御部150の動作と同一であるため、詳細な説明は省略する。
第2制御部150は、第3補正係数Kaを取得すると(ステップT7)、スロットルバルブ開度の変更速度の上限値を、第5マップ177を参照して取得する(ステップT8)。第2制御部150は、車体のロール角の絶対値と、ステップT2で判定した通知種類とに基づいて第5マップ177を参照し、スロットルバルブ開度の変更速度の上限値を取得する(ステップT8)。
上記実施の形態は、以下の構成の具体例である。
この構成によれば、触覚刺激装置が運転者に与える触覚刺激の大きさが鞍乗り型車両の状態により変更されるので、例えば、鞍乗り型車両の状態が、運転者に触覚刺激が伝わり難い状態であっても、触覚刺激による情報通知の精度を高めることができる。
エンジンの回転数が大きくなるほど、エンジンの振動や音の影響により触覚刺激による情報が運転者に伝わり難くなる。この構成によれば、エンジンの回転数が、第1回転数よりも回転数が大きい第2回転数である場合に触覚刺激装置が運転者に与える触覚刺激の大きさが大きくなるように触覚刺激装置を制御するので、触覚刺激による情報通知の精度を高めることができる。
鞍乗り型車両の車速が速くなるほど、走行風の影響により触覚刺激による情報が運転者に伝わり難くなる。この構成によれば、車速が第1車速よりも大きい第2車速である場合に触覚刺激装置が運転者に与える触覚刺激の大きさが大きくなるように触覚刺激装置を制御するので、触覚刺激による情報通知の精度を高めることができる。
鞍乗り型車両の加速度が速くなるほど、鞍乗り型車両に生じる振動等の影響により触覚刺激による情報が運転者に伝わり難くなる。この構成によれば、加速度が第1加速度よりも大きい第2加速度である場合に触覚刺激装置が運転者に与える触覚刺激の大きさが大きくなるように触覚刺激装置を制御するので、触覚刺激による情報通知の精度を高めることができる。
外気温が低くなるほど、触覚刺激による情報が運転者に伝わり難くなる。この構成によれば、外気温が第1外気温よりも低い第2外気温である場合に触覚刺激装置が運転者に与える触覚刺激の大きさが大きくなるように触覚刺激装置を制御するので、触覚刺激による情報通知の精度を高めることができる。
この構成によれば、第1通知、第2通知、第3通知及び第4通知を通知する場合の触覚刺激の大きさが変更されるので、運転者に第1通知、第2通知、第3通知及び第4通知を触覚刺激により認識させることができる。
この構成によれば、触覚刺激装置が運転者に与える触覚刺激の大きさが鞍乗り型車両の状態により変更されるので、例えば、鞍乗り型車両の状態が、運転者に触覚刺激が伝わり難い状態であっても、触覚刺激による情報通知の精度を高めることができる。
また、触覚刺激装置がヘルメット、グローブ、ブーツの少なくとも1つに搭載されることにより、触覚刺激を受けていることを認識しやすい部位に触覚刺激装置を配置することができる。
また図7又は図13に示すフローチャートの処理単位は、第2制御部150の処理を理解容易にするために、主な処理内容に応じて分割したものであり、処理単位の分割の仕方や名称によって本開示が制限されることはない。
10 鞍乗り型車両
50 触覚刺激装置
51 第1無線通信部
53 第1制御部
55 電動エアポンプ
57 バルーン
110 ナビゲーション装置
117 車輪速センサ
120 第1検出部
121 IMU
125 車輪速センサ
127 スロットルグリップ開度センサ
129 スロットルバルブ開度センサ
130 第2検出部
131 外気温センサ
141 加圧モジュレータ
143 スロットルアクチュエータ
145 ステアリングダンパ
147 第2無線通信部
150 第2制御部
160 入出力インターフェイス
170 メモリ
171 制御プログラム
172 運転コーチングデータ
173 第1マップ
174 第2マップ
175 第3マップ
176 第4マップ
177 第5マップ
177 第6マップ
178 第8マップ
178 第6マップ
180 プロセッサ
Claims (7)
- 鞍乗り型車両(10)であって、
運転者に触覚刺激を与える触覚刺激装置(50)と通信する通信部(147)と、
前記触覚刺激装置(50)を制御する制御信号を送信して、前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさを制御する制御部(150)と、
前記鞍乗り型車両の状態を検出する第1検出部(120)と、を備え、
前記制御部(150)は、前記第1検出部(120)が検出した前記鞍乗り型車両(10)の状態に基づき、前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさを変更することを特徴とする鞍乗り型車両。 - 前記第1検出部(120)は、前記鞍乗り型車両が備えるエンジン(12)の回転数を検出し、
前記制御部(150)は、前記第1検出部(120)が検出した前記エンジン(12)の回転数が第1回転数である場合に前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさよりも、前記第1検出部(120)が検出した前記エンジン(12)の回転数が、前記第1回転数よりも回転数が大きい第2回転数である場合に前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさが大きくなるように前記触覚刺激装置(50)を制御することを特徴とする請求項1記載の鞍乗り型車両。 - 前記第1検出部(120)は、前記鞍乗り型車両の車速を検出し、
前記制御部(150)は、前記第1検出部(120)が検出した車速が第1車速である場合に前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさよりも、前記第1検出部(120)が検出した車速が、前記第1車速よりも大きい第2車速である場合に前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさが大きくなるように前記触覚刺激装置(50)を制御することを特徴とする請求項1又は2記載の鞍乗り型車両。 - 前記第1検出部(120)は、前記鞍乗り型車両の加速度を検出し、
前記制御部(150)は、前記第1検出部(120)が検出した加速度が第1加速度である場合に前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさよりも、前記第1検出部(120)が検出した加速度が、前記第1加速度よりも大きい第2加速度である場合に前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさが大きくなるように前記触覚刺激装置(50)を制御することを特徴とする請求項1から3のいずれか一項に記載の鞍乗り型車両。 - 前記鞍乗り型車両(10)の周囲の外気温を検出する第2検出部(130)を備え、
前記制御部(150)は、前記第2検出部(130)が検出した外気温が第1外気温である場合に前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさよりも、前記第2検出部(130)が検出した外気温が、前記第1外気温よりも低い第2外気温である場合に前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさが大きくなるように前記触覚刺激装置(50)を制御することを特徴とする請求項1から4のいずれか一項に記載の鞍乗り型車両。 - 触覚刺激による前記運転者への通知には、前記鞍乗り型車両(10)の挙動に関する通知である第1通知と、前記運転者の注意力の低下を通知する第2通知と、運転の技術指導に関する通知である第3通知と、ナビゲーションに関する通知である第4通知と、を含み、
前記制御部(150)は、前記運転者に前記第1通知、前記第2通知、前記第3通知及び前記第4通知を通知する場合の触覚刺激の大きさをそれぞれ変更することを特徴とする請求項1から5のいずれか一項に記載の鞍乗り型車両。 - 運転者に触覚刺激を与える触覚刺激装置(50)と、鞍乗り型車両(10)とを備える触覚刺激システム(1)であって、
前記鞍乗り型車両(10)は、
前記触覚刺激装置(50)と通信する通信部(147)と、
前記触覚刺激装置(50)を制御する制御信号を送信して、前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさを制御する制御部(150)と、
前記鞍乗り型車両(10)の状態を検出する第1検出部(120)と、を備え、
前記制御部(150)は、前記第1検出部(120)が検出した前記鞍乗り型車両(10)の状態に基づき、前記触覚刺激装置(50)が前記運転者に与える触覚刺激の大きさを変更し、
前記触覚刺激装置(50)は、前記運転者が着用するヘルメット、グローブ、ブーツの少なくとも1つに搭載されることを特徴とする触覚刺激システム。
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| DE (1) | DE112022005926T5 (ja) |
| WO (1) | WO2023145166A1 (ja) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010052236A1 (en) * | 2008-11-07 | 2010-05-14 | Verhey Van Wijk Beheer B.V. | Tactile speed control assist for car drivers |
| WO2011125478A1 (ja) * | 2010-04-02 | 2011-10-13 | シャープ株式会社 | 車両用警告装置 |
| US8552847B1 (en) * | 2012-05-01 | 2013-10-08 | Racing Incident Pty Ltd. | Tactile based performance enhancement system |
| JP2019003262A (ja) * | 2017-06-12 | 2019-01-10 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 衝突警告システムのための処理ユニット及び処理方法、衝突警告システム、及び、モータサイクル |
| JP2020091671A (ja) * | 2018-12-06 | 2020-06-11 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | 鞍乗型車両のライダー支援システムのための処理装置及び処理方法、鞍乗型車両のライダー支援システム、及び、鞍乗型車両 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6424390B2 (ja) * | 2015-03-31 | 2018-11-21 | 本田技研工業株式会社 | 鞍乗り型車両の路面グリップ警告装置 |
| WO2019087579A1 (ja) | 2017-11-02 | 2019-05-09 | ヤマハ発動機株式会社 | 鞍乗型車両 |
| JP2022010439A (ja) | 2020-06-29 | 2022-01-17 | 日立Astemo株式会社 | 電子制御装置 |
-
2022
- 2022-10-25 WO PCT/JP2022/039619 patent/WO2023145166A1/ja not_active Ceased
- 2022-10-25 DE DE112022005926.5T patent/DE112022005926T5/de active Pending
- 2022-10-25 JP JP2023576623A patent/JP7683049B2/ja active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010052236A1 (en) * | 2008-11-07 | 2010-05-14 | Verhey Van Wijk Beheer B.V. | Tactile speed control assist for car drivers |
| WO2011125478A1 (ja) * | 2010-04-02 | 2011-10-13 | シャープ株式会社 | 車両用警告装置 |
| US8552847B1 (en) * | 2012-05-01 | 2013-10-08 | Racing Incident Pty Ltd. | Tactile based performance enhancement system |
| JP2019003262A (ja) * | 2017-06-12 | 2019-01-10 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 衝突警告システムのための処理ユニット及び処理方法、衝突警告システム、及び、モータサイクル |
| JP2020091671A (ja) * | 2018-12-06 | 2020-06-11 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | 鞍乗型車両のライダー支援システムのための処理装置及び処理方法、鞍乗型車両のライダー支援システム、及び、鞍乗型車両 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7683049B2 (ja) | 2025-05-26 |
| JPWO2023145166A1 (ja) | 2023-08-03 |
| DE112022005926T5 (de) | 2024-10-02 |
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