Motor driving control apparatus

Patent metadata

Field	Value
Publication number	US-2016121963-A1
Application number	US-201414897014-A
Country	US
Kind code	A1
Filing date	Jun 13, 2014
Priority date	Jun 14, 2013
Publication date	May 5, 2016
Grant date	—

Abstract

This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.

First claim

1 . A motor driving control apparatus, comprising:
a driving unit that drives a motor; and a regeneration control unit that controls the driving unit so as to generate a regenerative braking force in accordance with a vehicle acceleration, a vehicle speed and a converted speed that is obtained by converting a pedal rotation speed.

2 . The motor driving control apparatus as set forth in claim 1 , wherein the regeneration control unit corrects a regenerative braking force that corresponds to at least one of the vehicle speed and the vehicle acceleration according to a coincidence degree of the converted speed with respect to the vehicle speed.

3 . The motor driving control apparatus as set forth in claim 1 , wherein the regeneration control unit controls the driving unit so as to linearly or accumulatively increase the regenerative braking force when the vehicle acceleration increases.

4 . The motor driving control apparatus as set forth in claim 1 , wherein the regeneration control unit controls the driving unit so as to increase the regenerative braking force when the vehicle speed increases.

5 . The motor driving control apparatus as set forth in claim 2 , wherein the regeneration control unit performs correction so that the regenerative braking force that corresponds to at least one of the vehicle speed and the vehicle acceleration increases, when the coincidence degree decreases.

6 . The motor driving control apparatus as set forth in claim 2 , wherein the regeneration control unit performs control so that the coincidence degree decreases in accordance with a converted speed that is obtained by converting a pedal rotation speed in a reverse rotation direction or so that a correction degree of the regenerative braking force in a state where a pedal rotation stops is kept, when the pedal rotation is reversely performed.

7 . The motor driving control apparatus as set forth in claim 1 , wherein the converted speed is calculated based on a maximum gear ratio of selectable gear ratios.

8 . The motor driving control apparatus as set forth in claim 1 , wherein the regeneration control unit performs correction so as to increase the regenerative braking force by using an offset value that corresponds to a converted speed that is obtained by converting a pedal rotation speed in a reverse rotation direction, when a pedal rotation is reversely performed.

9 . The motor driving control apparatus as set forth in claim 2 , wherein the regeneration control unit controls the driving unit so as to further increase the regenerative braking force in accordance with the vehicle acceleration regardless of the coincidence degree, when the vehicle acceleration is equal to or greater than a predetermined value.

10 . The motor driving control apparatus as set forth in claim 2 , wherein the regeneration control unit controls the driving unit so as to further increase the regenerative braking force in accordance with the vehicle speed regardless of the coincidence degree, when the vehicle speed is equal to or greater than a predetermined value.

11 . The motor driving control apparatus as set forth in claim 1 , wherein the regeneration control unit restricts the regenerative braking force to be equal to or less than a regenerative braking force determined based on a regenerative efficiency.

12 . The motor driving control apparatus as set forth in claim 1 , wherein the regeneration control unit controls the driving unit so as to increase the regenerative braking force when an output voltage of a battery for the motor falls.

13 . The motor driving control apparatus as set forth in claim 1 , wherein the regeneration control unit sets a steady correction amount of the regenerative braking force according to tendency of change of an output voltage of a battery for the motor, and controls the driving unit so as to generate a regenerative braking force corrected by the correction amount.

14 . The motor driving control apparatus as set forth in claim 1 , wherein the regeneration control unit restricts the regenerative braking force to be equal to or less than a regenerative braking force obtained when regenerative braking by a manual operation is performed.

Assignees

• Taiyo Yuden Kk
• Microspace Corp

Inventors

• Tanaka Masato
• Hosaka Yasuo
• Asanuma Kazuo
• Hagiwara Hiromi
• Shimizu Satoru

Classifications

• B60L7/26

  Controlling the braking effect · CPC title

• B60L2250/26

  by pedal actuation · CPC title

• B60L2220/46

  Wheel motors, i.e. motor connected to only one wheel · CPC title

• B60L2240/14

  Acceleration · CPC title

• B62M23/02

  characterised by the use of two or more dissimilar sources of power, e.g. transmissions for hybrid motorcycles (transmissions for wheeled vehicles using rider propulsion with additional source of power B62M6/00) · CPC title