RIDING TYPE VEHICLE AND METHOD OF CONTROLLING RIDING TYPE VEHICLE
First Claim
1. A riding type vehicle comprising:
- a vehicle main body;
a backrest supported above the vehicle main body and supporting a back of a rider;
a seat portion disposed above the vehicle main body and below the backrest, and supporting a gluteal region of the rider;
a plurality of drive wheels rotatably supported at a lower portion of the vehicle main body;
a driving unit disposed at the lower portion of the vehicle main body, that drives the plurality of drive wheels to allow the vehicle main body to make a forward motion, a backward motion, or a turn;
a posture sensor for the backrest disposed in a portion of the backrest with which left and right shoulder blades of the rider come into contact;
a contact-position-dependent type operational intention determining unit that determines whether there is an operational intention of the rider, by the posture sensor detecting a change in a posture of the rider;
a left-right amount-of-change comparison type turn intention determining unit that determines, only when the operational intention determining unit determines that there is an operational intention of the rider, whether a difference between pressure values of portions with which the left and right shoulder blades of the rider come into contact exceeds a seating confirmation threshold value, and determines that there is a left or right turn intention of the rider when it is determined that the difference between the pressure values exceeds the seating confirmation threshold value, the pressure values being outputted from the posture sensor for the backrest; and
a drive control unit that performs drive control of the driving unit according to the left or right turn intention of the rider determined by the turn intention determining unit.
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Accused Products
Abstract
A vehicle includes a contact-position-dependent type operational intention determining unit that detects a change in posture of a rider using posture sensors for a backrest disposed in areas of a backrest with which left and right shoulder blades of the rider come into contact, and thereby determines whether there is an operational intention of the rider; and a left-right amount-of-change comparison type turn intention determining unit that determines, only when it is determined that there is an operational intention, whether there is a left or right turn intention of the rider from a difference between sensor output values located left-right symmetrically.
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Citations
22 Claims
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1. A riding type vehicle comprising:
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a vehicle main body; a backrest supported above the vehicle main body and supporting a back of a rider; a seat portion disposed above the vehicle main body and below the backrest, and supporting a gluteal region of the rider; a plurality of drive wheels rotatably supported at a lower portion of the vehicle main body; a driving unit disposed at the lower portion of the vehicle main body, that drives the plurality of drive wheels to allow the vehicle main body to make a forward motion, a backward motion, or a turn; a posture sensor for the backrest disposed in a portion of the backrest with which left and right shoulder blades of the rider come into contact; a contact-position-dependent type operational intention determining unit that determines whether there is an operational intention of the rider, by the posture sensor detecting a change in a posture of the rider; a left-right amount-of-change comparison type turn intention determining unit that determines, only when the operational intention determining unit determines that there is an operational intention of the rider, whether a difference between pressure values of portions with which the left and right shoulder blades of the rider come into contact exceeds a seating confirmation threshold value, and determines that there is a left or right turn intention of the rider when it is determined that the difference between the pressure values exceeds the seating confirmation threshold value, the pressure values being outputted from the posture sensor for the backrest; and a drive control unit that performs drive control of the driving unit according to the left or right turn intention of the rider determined by the turn intention determining unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of controlling a riding type vehicle, wherein
the riding type vehicle includes a seat portion and backrest portions operated by a change in posture of a rider and provided such that the rider is in substantially standing position when riding in the vehicle, the backrest portions include a fixed backrest portion disposed in a position that can come into contact with a body trunk of the rider and fixed to a standing position riding type vehicle main body; - and movable backrest portions that can be moved with respect to the riding type vehicle main body achieving the substantially standing position and that can follow a change in posture of the rider,
the method comprising; with the movable backrest portions disposed left-right symmetrically with respect to the fixed backrest portion, detecting left and right moving displacements by a backrest posture sensor; and by a drive control unit, calculating an amount of displacement from each of the moving displacements detected by the sensor and outputting a drive instruction based on the amounts of displacement, thereby allowing the riding type vehicle to make a turn.
- and movable backrest portions that can be moved with respect to the riding type vehicle main body achieving the substantially standing position and that can follow a change in posture of the rider,
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22. A method of controlling a riding type vehicle that controls drive of a riding type vehicle including a vehicle main body;
- a backrest supported above the vehicle main body and supporting a back of a rider;
a seat portion disposed above the vehicle main body and below the backrest, and supporting a gluteal region of the rider;
a plurality of drive wheels rotatably supported at a lower portion of the vehicle main body; and
a driving unit disposed at the lower portion of the vehicle main body and driving the plurality of drive wheels to allow the vehicle main body to make a forward motion, a backward motion, or a turn,the method comprising; detecting, by a posture sensor for the backrest, a change in posture of the rider, thereby determining whether there is an operational intention of the rider by a contact-position-dependent type operational intention determining unit, the posture sensor for the backrest being disposed in a portion of the backrest with which left and right shoulder blades of the rider come into contact, only when the operational intention determining unit determines that there is an operational intention of the rider, determining, by a left-right amount-of-change comparison type turn intention determining unit, whether a difference between pressure sum total values exceeds a seating confirmation threshold value, and determining that there is a left or right turn intention of the rider when the difference between the pressure sum total values exceeds the seating confirmation threshold value, the pressure sum total values being sum total values of pressure in areas where the sensor provided in the portion with which the left and right shoulder blades of the rider come into contact indicates pressure equal to or beyond a certain value, and the sum total values being outputted from the posture sensor for the backrest, and performing, by a drive control unit, drive control of the driving unit according to the left or right turn intention of the rider determined by the turn intention determining unit.
- a backrest supported above the vehicle main body and supporting a back of a rider;
Specification