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 Title: |
US5973463:
Driving controller for electric vehicle
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Okuda, Kenzo; Toyota, Japan
Mizutani, Ryoji; Aichi-ken, Japan
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| Assignee: |
Toyota Jidosha Kabushiki Kaisha, Toyota, Japan
other patents from TOYOTA JIDOSHA K.K. (582975) (approx. 7,311)
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| Published / Filed: |
1999-10-26
/ 1997-08-19
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| Application Number: |
US1997000914213
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| IPC Code: |
Advanced:
B60K 7/00;
B60L 3/00;
B60L 15/00;
B60L 15/20;
IPC-7:
B60K 28/10;
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| ECLA Code: |
B60L15/20D; L60L220/46; Y02T10/72D4;
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| U.S. Class: |
Current:
318/430;
180/282;
318/067;
318/432;
701/004;
Original:
318/430;
318/067;
318/432;
364/424.05;
180/282;
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| Field of Search: |
318/138,430-439,800-811
180/65.1-65.6,282,65.8,197
364/424.05,424.02,424.06,426.01,426.02,426.03
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| Priority Number: |
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| Abstract: |
A driving controller of electric vehicles. An angular accelerative dimension error calculator calculates error information having a dimension of angular acceleration of a car body. A feedback torque calculator calculates the feedback torque on the basis of the error information according to the sign of a steering angle and the error information, and ON/OFF of an accelerator. A vehicle controller corrects the reference torque, determined according to an accelerator angle and braking force, by the feedback torque, and outputs the corrected reference torque toward motor controllers, thereby improving vehicle running safety.
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| Attorney, Agent or Firm: |
Oblon, Spivak, McClelland, Maier & Neustadt, P.C. ;
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| Primary / Asst. Examiners: |
Ip, Paul;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
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First Claim:
Show all 4 claims |
What is claimed is:
1. A driving controller mounted onboard an electric vehicle provided with at least one driving wheel for a right side and at least one driving wheel for a left side of the electric vehicle and a vehicle running motor for every driving wheel, the driving controller comprising:
- means for determining a reference torque as a reference value of output torque of the vehicle running motor for every vehicle running motor on the basis of driver's requirements;
- means for directly or indirectly detecting acceleration or angular acceleration of the electric vehicle;
- means for detecting US-OS characteristics of the electric vehicle; and
- reference torque correction means for correcting the reference torque for every vehicle running motor on the basis of the acceleration or the angular acceleration so that the US-OS characteristics shift toward a status of neutral steer when the US-OS characteristics show a tendency to deviate from the status of neutral steer.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 83 U.S. patent(s) that reference this one
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