Invention Grant
- Patent Title: Control apparatus for electric vehicle
- Patent Title (中): 电动车控制装置
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Application No.: US12711587Application Date: 2010-02-24
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Publication No.: US08634987B2Publication Date: 2014-01-21
- Inventor: Itaru Seta , Yosuke Ohtomo
- Applicant: Itaru Seta , Yosuke Ohtomo
- Applicant Address: JP Tokyo
- Assignee: Fuji Jukogyo Kabushiki Kaisha
- Current Assignee: Fuji Jukogyo Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: McDermott Will & Emery LLP
- Priority: JP2009-058273 20090311
- Main IPC: G06F11/30
- IPC: G06F11/30 ; B60W10/00 ; B60T13/74

Abstract:
A creep travel capability of an electric vehicle is secured when an abnormality occurs in a brake sensor. When an accelerator operation amount reaches 0% in a low vehicle speed region, a target creep torque is set, whereupon a motor-generator is controlled toward the target creep torque. The target creep torque is reduced as a brake pedal is depressed in order to suppress heat generation and the like in the motor-generator during vehicle braking. Hence, in an electric vehicle in which the target creep torque is varied in accordance with the brake operation amount, when an abnormality occurs (step S11) in a brake sensor for detecting a brake operation amount, a preset prescribed creep torque is employed as the target creep torque regardless of the brake operation amount (step S15). The prescribed creep torque is set at a required magnitude for securing the creep travel capability.
Public/Granted literature
- US20100235043A1 CONTROL APPARATUS FOR ELECTRIC VEHICLE Public/Granted day:2010-09-16
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