Title:
TRANSMISSION CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP3924530
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve deceleration performance by solving problems in a current clutch pack brake.
SOLUTION: A transmission has a central control unit (CPU) for controlling the braking energy of a truck by sharing energy dissipation between a plurality of clutch packs. After lowering the engine speed, the CPU slips two clutch packs at the same time to maintain the decelerated revolving speed for a torque converter. The transmission system also reduces an energy loss during the high draw bar pull conditions. Engine speed is modulated to trim energy peaks when travelling at a low pushing or pulling speed. The generation of heat in the torque converter is reduced, and the lost pushing force or pulling forces are restored by an additional transmission gear reduction.
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Inventors:
Robert Lee Chess
Application Number:
JP2002367299A
Publication Date:
June 06, 2007
Filing Date:
December 18, 2002
Export Citation:
Assignee:
NMHG Oregon, Inc.
International Classes:
F02D29/00; F16H61/02; B60W10/02; B60W10/06; B60W10/10; B60W30/18; F16D37/00; F16D48/06; F16D48/10; F16H61/00; G06F13/00; G06G7/76; F16H3/093; F16H59/38; F16H59/46; (IPC1-7): F16H61/02; F02D29/00; //F16H59:18; F16H59:24; F16H59:42; F16H59:44; F16H59:46; F16H59:54; F16H59:72
Domestic Patent References:
| JP2001116129A | ||||
| JP4869951A | ||||
| JP1240350A | ||||
| JP2001116070A | ||||
| JP3292456A |
Attorney, Agent or Firm:
Kazuo Asahi