Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
On-grade shift logic with provision for skip downshifts










Image Number 3 for United States Patent #4916979.

An improved control system and method for an automatic/semi-automatic transmission system (10) including an automatic change gear transmission (12) driven by a throttle (26) controlled engine (14) is provided. The control system includes a processing unit (42) for receiving inputs indicating at least throttle position (THL) and vehicle speed (OS) and for determining vehicle deceleration (dOS/dt) and for processing these inputs in accordance with a program or logic rules to determine the selected engaged gear ratio and for issuing command signals to a transmission shifting mechanism (34). The processing unit includes logic rules by which vehicle performance is maximized and the control will evaluate and allow and/or execute skip downshifts upon sensing conditions indicative of vehicle deceleration due to ascending a steep grade.








 
 
  Recently Added Patents
Data-conditioned encryption method
Modified continuous phase modulation communications system and related methods
Image processing device, image forming apparatus, and non-transitory computer readable recording medium
Sealing member for piezoelectric resonator device, and piezoelectric resonator device
High-voltage AC light-emitting diode structure
Electric separator, method for the production and use thereof
Method and system for placing an emergency call
  Randomly Featured Patents
Electric part having solder-less terminal metal fitment
Barbeque grill having pirate treasure chest appearance
Fuel additive concentrate containing tagging material
Novel liquid iodophors
Wallet and method of making same
Semiconductor storage apparatus
Alarm transmitter
Swivel adapter for nebulizer
Cable gripping device
Method of welding metal pipe sections with explosives