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Controller for driving a motor, and electric power assisted vehicle
US2016107719A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016107719-A1 |
| Application number | US-201514882174-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 13, 2015 |
| Priority date | Oct 15, 2014 |
| Publication date | Apr 21, 2016 |
| Grant date | — |
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- Title
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Abstract
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In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of a pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a rotation amount of the pedal while the rotation direction of the pedal is backwards, the rotation amount being obtained by the pedal rotation sensor.
First claim
Opening claim text (preview).
What is claimed is: 1 . A controller for driving a motor, comprising: a driving control unit that controls driving of a motor; and a regenerative control unit that instructs the driving control unit to start regeneration when a signal received from a pedal rotation sensor that detects a rotation direction of a pedal indicates that the rotation direction of the pedal is backwards, said regenerative control unit controlling an amount of the regeneration in accordance with a rotation amount of the pedal while said rotation direction of the pedal is backwards, said rotation amount being obtained by the pedal rotation sensor. 2 . The controller for driving a motor according to claim 1 , wherein the regenerative control unit, after instructing the driving control unit to start regeneration, instructs the driving control unit to stop regeneration when a signal received from the pedal rotation sensor indicates that the rotation direction of the pedal is forward. 3 . The controller for driving a motor according to claim 1 , wherein the regenerative control unit, after instructing the driving control unit to start regeneration, instructs the driving control unit to stop regeneration when a signal received from a torque sensor indicates that torque has been detected. 4 . The controller for driving a motor according to claim 1 , wherein the regenerative control unit has a control coefficient calculation unit that, after the regenerative control unit instructs the driving control unit to start regeneration, calculates a control coefficient for a regeneration target amount in accordance with the rotation amount of the pedal and the rotation direction of the pedal obtained from the pedal rotation sensor, and wherein the driving control unit controls driving of a motor in accordance with the regeneration target amount and the control coefficient. 5 . The controller for driving a motor according to claim 1 , wherein the regenerative control unit has a control coefficient calculation unit that, after the regenerative control unit instructs the driving control unit to start regeneration, increases a control coefficient for a regeneration target amount in accordance with the rotation amount of the pedal obtained from the pedal rotation sensor when the rotation direction of the pedal obtained by the pedal rotation sensor is backwards, and decreases the control coefficient in accordance with the rotation amount of the pedal obtained by the pedal rotation sensor when the rotation direction of the pedal obtained from the pedal rotation sensor is forward, and wherein the driving control unit controls driving of a motor in accordance with the regeneration target amount and the control coefficient. 6 . The controller for driving a motor according to claim 5 , wherein the regenerative control unit, after instructing the driving control unit to start regeneration, instructs the driving control unit to stop regeneration when a signal has been received from a torque sensor indicating that torque has been detected. 7 . The controller for driving a motor according to claim 3 , wherein the pedal rotation sensor is integrated with the torque sensor. 8 . An electric power assisted vehicle, comprising: the controller for driving a motor according to claim 1 .
Assignees
Inventors
Classifications
Electric energy management in electromobility · CPC title
with means to change over to human control · CPC title
Dynamic electric regenerative braking (B60L7/22 takes precedence) · CPC title
Controlling the braking effect (B60L7/12, B60L7/14, B60L7/16 take precedence) · CPC title
Bikes · CPC title
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Frequently asked questions
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- What does patent US2016107719A1 cover?
- In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of a pedal indicates that the rotation direction of the pedal is backwards, the regener…
- Who is the assignee on this patent?
- Taiyo Yuden Kk
- What technology area does this patent fall under?
- Primary CPC classification B62M6/45. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Apr 21 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).