Title:
TORQUE CONTROL APPARATUS
Document Type and Number:
Japanese Patent JP2021069144
Kind Code:
A
Abstract:
To provide a torque control apparatus capable of controlling the torque of a plurality of motors individually while suppressing an increase in the sizes of driving devices.SOLUTION: A torque control apparatus includes: a cooling circuit where a coolant flows through a first driving device and a second driving device; and a temperature sensor for detecting the temperature of the coolant flowing in the cooling circuit. In the torque control apparatus, on the basis of the quantity of heat radiated or absorbed in a process where the coolant flows through the first driving device and the second driving device, the theoretical value of the temperature of the coolant to be detected by the temperature sensor is obtained (Step S2). On the basis of a difference between the actual detected value of the temperature of the coolant detected by the temperature sensor and the theoretical value, the temperature of a gear train part provided in each driving device is estimated (Step S3). On the basis of the estimated temperature, a motor provided in each driving device is controlled (Step S4).SELECTED DRAWING: Figure 3
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Inventors:
ITO FUMITO
Application Number:
JP2019190754A
Publication Date:
April 30, 2021
Filing Date:
October 18, 2019
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60L15/20; B60K6/22; B60K6/485; B60L3/00; B60L9/18; B60W10/08; B60W20/50; H02P5/46
Attorney, Agent or Firm:
Watanabe strong
Kikuhiko Nakamoto
Kikuhiko Nakamoto