Train vehicle control microprocessor power reset
First Claim
1. In apparatus for determining the desired performance of a vehicle, the combination ofmeans for providing a first operation periodically executing a sequence of steps in relation to said desired performance of the vehicle and developing an output signal for each periodic completion of the sequence of steps and for providing a second operation effecting a predetermined reinitialization of said first operation,means responsive to the respective output signals being developed at an actual repetition rate in accordance with each periodic completion of the sequence of steps for selecting one of the first operation and the second operation by a comparison of said actual repetition rate with a predetermined reference repetition rate, andmeans responsive to each periodic execution of the sequence of steps for providing said desired performance of the vehicle.
4 Assignments
0 Petitions
Accused Products
Abstract
There is disclosed a passenger vehicle operation control apparatus and method including program microprocessor control apparatus for providing a dynamic output signal when the microprocessor completes a predetermined main computer control program subroutine and this dynamic output signal operates with a hardware logic circuit apparatus including a timing circuit such that a repetition rate in excess of that required to keep the timing circuit reset is required, otherwise the computer control program is reinitialized.
14 Citations
8 Claims
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1. In apparatus for determining the desired performance of a vehicle, the combination of
means for providing a first operation periodically executing a sequence of steps in relation to said desired performance of the vehicle and developing an output signal for each periodic completion of the sequence of steps and for providing a second operation effecting a predetermined reinitialization of said first operation, means responsive to the respective output signals being developed at an actual repetition rate in accordance with each periodic completion of the sequence of steps for selecting one of the first operation and the second operation by a comparison of said actual repetition rate with a predetermined reference repetition rate, and means responsive to each periodic execution of the sequence of steps for providing said desired performance of the vehicle.
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7. The method of controlling a vehicle, including the steps of
providing a sequence of control operations for said vehicle during each of successive time periods, providing an output signal in relation to the completion of said sequence of control operations during each of said successive time periods, sensing the actual repetition rate of the provided output signals for comparison with an established reference repetition rate, providing an initialization of said sequence of control operations in accordance with a predetermined relationship between the actual repetition rate and the reference repetition rate, and controlling the vehicle in response to said sequence of control operations.
Specification