Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Construction or agricultural-type vehicle
Reexamination Certificate
2005-11-22
2005-11-22
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Construction or agricultural-type vehicle
C701S001000, C701S003000, C180S065100, C180S065600, C180S019100
Reexamination Certificate
active
06968265
ABSTRACT:
In a travel control method for an electric vehicle having first and second electric motors for driving respective first and second driven wheels, a speed of each of the first and second electric motors is calculated. The speed of the first electric motor is reduced to equal the speed of the second electric motor when the speed of the first electric motor is higher than the speed of the second electric motor. Reduction of the speed of the first electric motor is not carried out when a first condition, in which a difference between the speeds of the first and second electric motors is below a first preselected threshold value, and a second condition, in which the speed of the first electric motor is below a second preselected threshold value identical or substantially equal to a low speed range of the electric vehicle, are met.
REFERENCES:
patent: 4351405 (1982-09-01), Fields et al.
patent: 6554088 (2003-04-01), Severinsky et al.
patent: 6564481 (2003-05-01), Wakitani et al.
patent: 6724165 (2004-04-01), Hughes
patent: 2002/0062583 (2002-05-01), Wakitani et al.
patent: 02142309 (2002-05-01), None
Shimizu Norikazu
Wakitani Tsutomu
Adams & Wilks
Camby Richard M.
Honda Motor Co. Ltd.
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