Invention Grant
- Patent Title: Electric vehicle having independent traction motor units
- Patent Title (中): 具有独立牵引电机单元的电动车
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Application No.: US14375499Application Date: 2013-01-18
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Publication No.: US09205760B2Publication Date: 2015-12-08
- Inventor: Tomoaki Makino
- Applicant: NTN CORPORATION
- Applicant Address: JP Osaka
- Assignee: NTN CORPORATION
- Current Assignee: NTN CORPORATION
- Current Assignee Address: JP Osaka
- Priority: JP2012-016163 20120130
- International Application: PCT/JP2013/050912 WO 20130118
- International Announcement: WO2013/114969 WO 20130808
- Main IPC: B60L3/00
- IPC: B60L3/00 ; B60L15/20 ; B60K6/46 ; B60W10/08 ; B60K7/00 ; B60L11/18 ; B60L15/02 ; B60K1/02 ; B60W10/18 ; B60W10/20 ; B60K1/04

Abstract:
An electric vehicle to automatically adjust output torque during travelling even when there is a difference in the output characteristic between two traction motor units that independently drive left and right drive wheels. The electric vehicle includes the motor units; a torque command unit that outputs torque command values to the motor units; a torque difference occurrence determiner that determines that a difference has occurred between actual driving forces TL, TR of the respective drive wheels even when the torque command unit applies the same torque command values TL*, TR* to the motor units; and a driving force difference reducer that, if the determiner determines that a driving force difference not less than a set value has occurred between the drive wheels, causes control of reducing the driving force difference to be performed during travelling.
Public/Granted literature
- US20150012158A1 ELECTRIC VEHICLE Public/Granted day:2015-01-08
Information query
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