Title:
ARITHMETIC DEVICE AND VEHICLE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/210536
Kind Code:
A1
Abstract:
This arithmetic device for establishing a minimization solution which, while satisfying a prescribed constraint condition regarding a prescribed evaluation function, minimizes the evaluation function, comprises: a first arithmetic unit for adopting at least one boundary point obtained from the constraint condition as a solution candidate with regard to the evaluation function and determining from this solution candidate a solution to minimize the evaluation function to be a provisional solution; and a second arithmetic unit for calculating a solution from a prescribed expression that gives the extreme value of the evaluation function and identifying a minimization solution on the basis of the solution that gives the extreme value and the provisional solution. The arithmetic device establishes a minimization solution without repeated computation. A control device (10) having an arithmetic unit (12) as the arithmetic device computes the braking-driving force of each wheel (2) using a minimization solution that is established on the basis of a total braking-driving force of a vehicle (1), the difference in total left and right braking-driving forces, and the lateral force and vertical load of each wheel (2). The constraint condition includes that a maximum left and right torque difference and a maximum torque are not exceeded, regarding front and rear respective actuators (3-7).
Inventors:
ABE HIROO (JP)
HACHISUKA RYO (JP)
MATSUO SHUNSUKE (JP)
HACHISUKA RYO (JP)
MATSUO SHUNSUKE (JP)
Application Number:
PCT/JP2023/015966
Publication Date:
November 02, 2023
Filing Date:
April 21, 2023
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP (JP)
International Classes:
G06F17/17; B60W40/00; G06F17/10
Foreign References:
| JP2018163396A | 2018-10-18 |
Other References:
TAMAKI HISASHI: "Optimization", JOURNAL OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS, vol. 46, no. 4, 10 April 2007 (2007-04-10), pages 268 - 273, XP093102516, DOI: 10.11499/sicejl1962.46.268
SAKAWA, MASATOSHI ET AL.: "Introduction to Mathematical Programming, 1st edition", 20 November 2014, MORIKITA PUBLISHING CO., LTD., JP, ISBN: 978-4-627-92181-8, article MASATOSHI SAKAWA ET AL.: "Section 1: Overview of mathematical programming", pages: 1 - 7, XP009550359
SAKAWA, MASATOSHI ET AL.: "Introduction to Mathematical Programming, 1st edition", 20 November 2014, MORIKITA PUBLISHING CO., LTD., JP, ISBN: 978-4-627-92181-8, article MASATOSHI SAKAWA ET AL.: "Section 1: Overview of mathematical programming", pages: 1 - 7, XP009550359
Attorney, Agent or Firm:
SUWA, Hanako et al. (JP)
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