Invention Grant
- Patent Title: Control device for vehicular differential limiting apparatus
- Patent Title (中): 车差速限制装置控制装置
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Application No.: US12524301Application Date: 2008-01-16
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Publication No.: US08271177B2Publication Date: 2012-09-18
- Inventor: Daisuke Okamoto
- Applicant: Daisuke Okamoto
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-019258 20070130
- International Application: PCT/JP2008/050388 WO 20080116
- International Announcement: WO2008/093535 WO 20080807
- Main IPC: B60T8/24
- IPC: B60T8/24

Abstract:
A control device for a vehicular differential limiting apparatus is provided, for applying differential limiting torques to a left drive wheel and a right drive wheel of a vehicle during startup and running thereof with favorably suppressing occurrence of deflection of the vehicle. The control device for the vehicular differential limiting apparatus comprises differential limiting torque calculating portion 60 that calculates the differential limiting torques based on a state quantity of the vehicle; differential limiting torque upper-limit guard value calculating portion 62 that calculates differential limiting torque upper-limit guard values based on a preset deflection permit yaw rate and a real yaw rate of the vehicle; and upper limit guard value processing portion 72 that limits the differential limiting torques ΔT calculated by the differential limiting torque calculating portion 60, using the differential limiting torque upper-limit guard values ΔTL calculated by the differential limiting torque upper-limit guard value calculating portion 62, for obtaining differential limiting torques to be applied to the left and right drive wheels. Thus, the most suitable differential limiting torque upper-limit guard values ΔTL can be obtained depending on the differential state, so that the differential limiting torques ΔT are applied to the left and right drive wheels depending on the road surface condition, favorably suppressing deflection of the vehicle.
Public/Granted literature
- US20100030443A1 CONTROL DEVICE FOR VEHICULAR DIFFERENTIAL LIMITING APPARATUS Public/Granted day:2010-02-04
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