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Patent

Motor-driven two-wheeled vehicle

TL;DR: In this article, a brushless motor with high torque and high speed was used to start a motor driven two-wheeled vehicle with a DC power unit and an inverter.
Abstract: PROBLEM TO BE SOLVED: To highly efficiently control a brushless motor with high torque or high speed by using a processor for processing digital signals, and in addition, to smoothly start the motor SOLUTION: A motor-driven two-wheeled vehicle is provided with a brushless motor 16, a DC power unit 12, and an inverter 13 which inputs a direct current from the power unit 12, converts direct current into an alternating current for driving the motor 16, and outputs the alternating current The vehicle is also provided with a controller (a timing generating circuit 14 and a timing deciding circuit 15), which generates a control signal for the inverter 13 and a processor for processing digital signals The processor 161 gives a control signal to the controller, so as to control the brushless motor 16 COPYRIGHT: (C)2001,JPO
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Patent
31 Jul 2008
TL;DR: In this paper, a battery-assisted bicycle capable of continuously lighting a headlamp even when the remaining capacity of a battery is less than or equal to or less than the auxiliary drive stopping value of a motor is provided.
Abstract: PROBLEM TO BE SOLVED: To provide a battery-assisted bicycle capable of continuously lighting a headlamp even when the remaining capacity of a battery is less SOLUTION: When the remaining capacity of a battery reaches the lighting regenerative start value V b equal to or less than the auxiliary drive stopping value V a of a motor, the lighting regenerative power generation is executed by performing the regenerative control of the motor As long as the wheel is continuously rotated, the headlamp is lit by the power generated by the lighting regenerative power generation COPYRIGHT: (C)2010,JPO&INPIT

22 citations

Patent
09 Mar 2006
TL;DR: In this article, the authors proposed a motor control device consisting of a switch-drive, a state detection sensor, and a feed-back control to reduce a switching loss when switch-driving a DC motor.
Abstract: PROBLEM TO BE SOLVED: To reduce a switching loss when switch-driving a DC motor, and to switch-drive the DC motor by a control drive system of a simple configuration SOLUTION: This motor control device comprises: a switch-drive means that generates a drive pulse by switching a DC voltage fed from a DC power supply on the basis of a prescribed gate pulse; a state detection sensor that detects the rotational state of the DC motor based on the motor drive pulse; and a feed-back control means that generates a gate pulse on the basis of the detection result of the state detection sensor so that the motor drive pulse is generated at the proportion of one pulse to half rotation of the DC motor and the pulse width of the motor drive pulse is variably set in accordance with the rotational state of the DC motor COPYRIGHT: (C)2006,JPO&NCIPI

8 citations

Patent
21 Dec 2006
TL;DR: In this paper, the authors proposed a guide device capable of manufacturing a support arm for supporting a guide pulley in an approximately co-using state and achieving the further reduction of manufacturing cost.
Abstract: PROBLEM TO BE SOLVED: To provide a guide device capable of manufacturing a support arm for supporting a guide pulley in an approximately co-using state and achieving the further reduction of manufacturing cost. SOLUTION: The guide device is provided with the guide pulley 31 engaged with a chain 27; the support arm 33 for rotatably supporting the guide pulley 31 through a pulley shaft 32; a unit case 35 as a mounting base mounted with the support arm 33; and a support shaft 34 for pivotably and pivotally supporting the support arm 33 on the unit case 35. A position restriction part 40 for restricting a pivot position of the support arm 33 is formed on the unit case 35 and a claw 33c engageable with the position restriction part 40 by being bent is formed on the support arm 33. Thereby, by a simple structure for only bending the claw 33c of the support arm 33 or not, a function for giving tension is given or is not given, to be put to a proper use. Thereby, one kind of a guide device 30 can be used in the approximately co-using state. COPYRIGHT: (C)2007,JPO&INPIT

5 citations