SLIP CONTROL DEVICE OF ELECTRIC AUTOMOBILE

Title:

SLIP CONTROL DEVICE OF ELECTRIC AUTOMOBILE

Document Type and Number:

WIPO Patent Application WO/2015/141520

Kind Code:

A1

Abstract:

Provided is a slip control device that is of an electric automobile and that can prevent the vehicle from undesirably becoming unable to accelerate as a result of the acceleration of the vehicle by means of gravitational acceleration being determined to be a slip when the vehicle is traveling on an inclined surface. The slip control device (20) is provided with: a threshold calculation means (18), an angular acceleration calculation means (22), an angular acceleration comparison means (26), a slip determination means (23), a torque cancelling means (25), a forward acceleration determination means (24), and a threshold correction means (30). The forward acceleration determination means (24) determines whether or not a forward acceleration is present in the angular acceleration calculated by the angular acceleration calculation means (22) when the torque command value from a motor (3) is caused to be zero by means of the torque cancelling means (25). The threshold correction means (30) sets the threshold determined by adding a stipulated value to the threshold calculated by the threshold calculation means (18) when the forward acceleration determination means (24) has determined that a forward acceleration is present.

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Inventors:

ZHANG YINGJIE (JP)
OKADA KOICHI (JP)
UCHIYAMA NAOYUKI (JP)

Application Number:

PCT/JP2015/056966

Publication Date:

September 24, 2015

Filing Date:

March 10, 2015

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)
ZHANG YINGJIE (JP)
OKADA KOICHI (JP)
UCHIYAMA NAOYUKI (JP)

International Classes:

B60L9/18

Foreign References:

JP2013116029A	2013-06-10
JPH09327101A	1997-12-16
JPH08182118A	1996-07-12
JP2004096822A	2004-03-25

Attorney, Agent or Firm:

SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)

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