Boots – shoes – and leggings
Patent
1991-05-15
1994-04-19
Black, Thomas G.
Boots, shoes, and leggings
36442403, 74866, G06F 1520, B60K 4118
Patent
active
053052153
ABSTRACT:
An expandable, modular microcomputer system for an off-road vehicle having a controller which is operable to generate a plurality of independent pulse-width modulated control signals and a plurality of independent on/off control signals to a corresponding plurality of metal oxide silicone field effect transistors (MOSFETS). An RS-485 bi-directional serial communications interface enables the system to communicate with at least one other ingredient, external, controller. Thus, the control system can be modularly expanded to handle the needs of increasingly complex powershift transmissions. A watchdog circuit monitors operation of the controller and is supplied with a regulated voltage independent of the regulated voltage used to power the microcomputer. The watchdog can provide a reset signal to the microcomputer when spurious operation of the microcomputer is detected, as well as initiate operation of a back-up voltage supply circuit. The back-up voltage supply circuit is responsive to at least one analog input and operable to pulse-width modulate at least one of the MOSFETs to thereby control a clutch of a powershift transmission while operating in a "limp-home" mode. The system is particularly well-suited for controlling transmissions of heavy-duty off-road vehicles such as earth moving and other like vehicles, but can be readily adapted for use with transmissions of vehicles to be used to widely varying applications.
REFERENCES:
patent: 3805640 (1974-04-01), Schneider et al.
patent: 4015488 (1977-04-01), Akeson et al.
patent: 4414863 (1983-11-01), Heino
patent: 4425620 (1984-01-01), Batcheller et al.
patent: 4458471 (1984-07-01), Herwig
patent: 4569255 (1986-02-01), Holmes
patent: 4625331 (1986-11-01), Richardson et al.
patent: 4648040 (1987-03-01), Cornell et al.
patent: 4648290 (1987-03-01), Dunkley et al.
patent: 4703428 (1987-10-01), Hosaka et al.
patent: 4715012 (1987-12-01), Mueller, Jr.
patent: 4718307 (1988-01-01), Yabe et al.
patent: 4740898 (1988-04-01), McKee et al.
patent: 4794548 (1988-12-01), Lynch et al.
patent: 4836054 (1989-06-01), Kumura
patent: 4841815 (1989-06-01), Takahashi
patent: 4843902 (1989-07-01), Patton et al.
patent: 4855913 (1989-08-01), Brekkestran et al.
patent: 4919012 (1990-04-01), Bolz
patent: 4937750 (1990-06-01), Gilliam
patent: 4947454 (1990-08-01), Garner
patent: 4967385 (1990-10-01), Brekkestran et al.
patent: 4998200 (1991-03-01), Glowczeswski et al.
patent: 5001944 (1991-03-01), Ogawa et al.
patent: 5007299 (1991-04-01), Bulgrien
patent: 5038091 (1991-08-01), Bashark
patent: 5043892 (1991-08-01), Brekkestran et al.
patent: 5058205 (1991-10-01), Roehrs et al.
patent: 5113498 (1992-05-01), Evan et al.
patent: 5210854 (1993-05-01), Beaverton et al.
SAE Publication Nos.: 670,724; 800,675; 831,776; 850,174; 851,115; 871,665; 881,179; 901,592; 911,831.
Batcheller Barry D.
Brekkestran Kevin L.
Kallis Adrian G.
Needham Charles D.
Black Thomas G.
Nguyen Tan Q.
Phoenix International Corporation
LandOfFree
Expandable, mobile, modular microcomputer system for an off-road does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Expandable, mobile, modular microcomputer system for an off-road, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable, mobile, modular microcomputer system for an off-road will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-25113