Inverted pendulum type vehicle

Patent metadata

Field	Value
Publication number	US-9317039-B2
Application number	US-201414225777-A
Country	US
Kind code	B2
Filing date	Mar 26, 2014
Priority date	Mar 29, 2013
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

An inverted pendulum type vehicle for improving the steering performance and the comfort of the vehicle. A control device of an inverted pendulum type vehicle including a moving motion unit driven by an actuator device controls the actuator device so that the position of the center of gravity of the entirety of an occupant riding on an occupant riding section and the vehicle is shifted from the position of a balance state in the request direction of movement of the center of gravity of the occupant recognized from a predetermined kind of state of the vehicle.

First claim

What is claimed is:

1. An inverted pendulum vehicle comprising:
a moving motion unit configured to be capable of moving in all directions on a floor surface;
an actuator device for driving the moving motion unit;
a base that incorporates the moving motion unit and the actuator devices;
an occupant riding section incorporated into the base so as to be tiltable with respect to a vertical direction;
a tilting state detection unit for detecting the tilting state of the occupant riding section;
a control device configured for controlling the motion of the actuator devices to balance the position of a center of gravity of the entirety of an occupant riding on the occupant riding section and the inverted pendulum vehicle according to the tilting state of the occupant riding section detected at least by the tilting state detection unit;
the inverted pendulum vehicle further includes vehicle state detection units for detecting a predetermined kind of state of the inverted pendulum vehicle for recognizing a moving request of the center of gravity of the occupant riding on the occupant riding section;
the control device is configured to control the actuator devices so that the position of the center of gravity of the entirety of the occupant riding on the occupant riding section and the inverted pendulum vehicle is shifted from the position of a balance state of the center of gravity of the entirety in the direction of a request for movement of the center of gravity of the occupant recognized from a state detected by the vehicle state detection units;
wherein the predetermined kind of state detected by the vehicle state detection units includes at least one of:
a command of a turning request of the inverted pendulum vehicle by the occupant riding on the occupant riding section;
a measured value of an actual yaw rate of the inverted pendulum vehicle;
a center of gravity of the entirety moving amount that is a relative moving amount of the center of gravity of the entirety with respect to the occupant riding section generated because the occupant riding on the occupant riding section relatively shifts the center of gravity of the occupant with respect to the occupant riding section; and
a temporal change rate of the center of gravity of the entirety moving amount;

wherein the predetermined kind of state detected by the vehicle state detection units includes the center of gravity of the entirety moving amount or a temporal change rate of the center of gravity of the entirety moving amount; and
the control device is configured to control the actuator devices wherein the larger the magnitude of the center of gravity of the entirety moving amount or the magnitude of the temporal change rate of the center of gravity of the entirety moving amount is, the shift amount of the position of the center of gravity of the entirety increases toward the direction the same as the center of gravity of the entirety moving amount or the direction the same as the temporal change rate of the center of gravity of the entirety moving amount.

2. The inverted pendulum vehicle according to claim 1 , wherein the vehicle state detection units includes a yaw rate sensor for outputting an angular velocity around a yaw axis of the vehicle based on a detection signal of the angular velocity sensor.

3. The inverted pendulum vehicle according to claim 1 , wherein the control device is configured to control the actuator devices to change a shift amount of the center of gravity of the entirety from the position of the balance state according to a state detected by the vehicle state detection units or according to the state and the moving speed of a representative point of the inverted pendulum vehicle.

4. The inverted pendulum vehicle according to claim 1 , wherein the predetermined kind of state detected by the vehicle state detection units includes the command of the turning request or the measured value of the yaw rate; and
the control device is configured to control the actuator devices so that the larger the magnitude of a request value of the yaw rate of the inverted pendulum vehicle shown by the command of the turning request or the magnitude of the measured value of the yaw rate is, the more the shift amount of the center of gravity of the entirety from the position of the balance state increases toward the center side of the turning radius of the inverted pendulum vehicle.

5. The inverted pendulum vehicle according to claim 1 , wherein the tilting state detection unit includes an acceleration sensor and an angular velocity sensor for detecting the tilting state of the occupant riding section.

6. The inverted pendulum vehicle according to claim 5 , wherein the angular velocity sensor is a gyro-sensor.

7. The inverted pendulum vehicle according to claim 5 , wherein an output from the acceleration sensor and the angular velocity sensor are inputted to the control device for determining a measured value of an inclination angle of the occupant riding the section.

8. An inverted pendulum vehicle comprising:
a moving motion unit configured to be capable of moving in all directions on a floor surface with an actuator device for driving the moving motion unit;
an occupant riding section incorporated into a base, said occupant riding section being tiltable with respect to a vertical direction;
a tilting state detection unit for detecting a tilting state of the occupant riding section;
a control device configured for controlling the motion of the actuator device so as to balance the position of a center of gravity of the entirety of an occupant riding on the occupant riding section and the inverted pendulum vehicle according to the tilting state of the occupant riding section detected at least by the tilting state detection unit;
the inverted pendulum vehicle further includes vehicle state detection units for detecting a moving request of the center of gravity of the occupant riding on the occupant riding section;
the control device is configured to control the actuator devices wherein the position of the center of gravity of the entirety of the occupant riding on the occupant riding section and the inverted pendulum vehicle is shifted from the position of a balance state of the center of gravity of the entirety in the direction of a request for movement of the center of gravity of the occupant recognized from a state detected by the vehicle state detection units;
said predetermined kind of state detected by the vehicle state detection units includes at least one of:
a command of a turning request of the inverted pendulum vehicle by the occupant riding on the occupant riding section;
a measured value of an actual yaw rate of the inverted pendulum vehicle;
a center of gravity of the entirety moving amount that is a relative moving amount of the center of gravity of the entirety with respect to the occupant riding section generated because the occupant riding on the occupant riding section relatively shifts the center of gravity of the occupant with respect to the occupant riding section; and
a temporal change rate of the center of gravity of the entirety moving amount;

wherein the predetermined kind of state detected by the vehicle state detection units includes the center of gravity of the entirety moving amount or a temporal change rate of the center of gravity of the entirety moving amount; and
the control device is configured to control the actuator devices wherein the larger the magnitude of the center of gravity of the entirety moving amount or the magnitude of the temporal change rate of the center of gravity of the entirety moving amount is, the shift amount of the position of the center of gravity of the entirety increases toward the direction the same as the center of gravi

Assignees

• Honda Motor Co Ltd

Inventors

• Araki Makoto
• Hasegawa Makoto
• Kobashi Shinichiro
• Shirokura Shinya

Classifications

• B60L2260/34

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• B60L2200/16

  Single-axle vehicles · CPC title

• B60L2200/12

  Bikes · CPC title

• B60L2240/20

  angular · CPC title

• B60L2240/22

  Yaw angle · CPC title