Speed control display system and method
First Claim
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1. A method for adjusting the arrival time of a vehicle at a destination, the method comprising:
- determining a real-time position of the vehicle relative to a stored optimum path of the vehicle for a haul cycle;
determining a real-time speed of the vehicle;
determining an estimated arrival time of the vehicle at a destination along the optimum path based on the determined real-time speed and the determined real-time position of the vehicle relative to the stored optimum path;
determining a deviation of the estimated arrival time from a stored optimum arrival time at the destination;
initiating automatic control of the vehicle, wherein the automatic control comprises;
reducing a power setting of the vehicle without intervention by a vehicle operator if the estimated arrival time is before the stored optimum arrival time;
determining if the vehicle can achieve the stored optimum arrival time by using a maximum power setting of the vehicle, wherein the maximum power setting is not available without automatic control of the vehicle;
increasing the power setting of the vehicle without intervention by the vehicle operator if the estimated arrival time is after the stored optimum arrival time and if the vehicle can achieve the stored optimum arrival time by using the maximum power setting of the vehicle.
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Abstract
A method for determination of vehicle characteristics in reference to an optimum path and determination of machine performance adjustment based on a calculated time of arrival relative to an optimum time of arrival. The method provides a resultant instantaneous display of modified vehicle settings to the operator.
12 Citations
20 Claims
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1. A method for adjusting the arrival time of a vehicle at a destination, the method comprising:
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determining a real-time position of the vehicle relative to a stored optimum path of the vehicle for a haul cycle; determining a real-time speed of the vehicle; determining an estimated arrival time of the vehicle at a destination along the optimum path based on the determined real-time speed and the determined real-time position of the vehicle relative to the stored optimum path; determining a deviation of the estimated arrival time from a stored optimum arrival time at the destination; initiating automatic control of the vehicle, wherein the automatic control comprises; reducing a power setting of the vehicle without intervention by a vehicle operator if the estimated arrival time is before the stored optimum arrival time; determining if the vehicle can achieve the stored optimum arrival time by using a maximum power setting of the vehicle, wherein the maximum power setting is not available without automatic control of the vehicle; increasing the power setting of the vehicle without intervention by the vehicle operator if the estimated arrival time is after the stored optimum arrival time and if the vehicle can achieve the stored optimum arrival time by using the maximum power setting of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for storing characteristic information of a vehicle along a path, the method comprising:
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receiving information regarding characteristics of the vehicle at points along a vehicle path; storing the received information regarding characteristics of the vehicle in a memory, wherein the memory is configured to store multiple iterations of vehicle characteristics along the vehicle path; determining if the vehicle as at the end of the path; if the vehicle is at the end of the path; determining that an acceptable average set of vehicle characteristics along the vehicle path is not stored; retrieving stored vehicle characteristics from the memory; generating vehicle characteristics along the vehicle path from the stored vehicle characteristics; storing the generated vehicle characteristics along the vehicle path in the memory; generating an acceptable average set of vehicle characteristics along the vehicle path from the generated vehicle characteristics along the vehicle path; if the vehicle is not at the end of the path; determining that an acceptable average set of vehicle characteristics along the vehicle path is stored; determining a deviation of the information regarding characteristics of the vehicle from the average set of vehicle characteristics along the vehicle path; determining, based on the determined deviation, if the vehicle is on the path. - View Dependent Claims (16)
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17. A display module for an off-highway dump truck vehicle comprising:
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a symbol representing the vehicle; a time scale; a time scale multiplier configured to modify a size of the time scale; an indication member configured to denote a position on the time scale, wherein the position of the indication member relative to the symbol indicates if an estimated arrival time of the vehicle at a destination is before or after a stored optimum arrival time, wherein the estimated arrival time of the vehicle is determined based on a real-time speed and a real-time position of the vehicle relative to a stored optimum path; and a power setting modification indicator configured to indicate if a reduced power setting or an increased power setting is active, wherein the reduced power setting is activated without intervention by a vehicle operator if the estimated arrival time is before the stored optimum arrival time, and wherein the increased power setting is activated without intervention by the vehicle operator if the estimated arrival time is after the stored optimum arrival time and if the vehicle can achieve the stored optimum arrival time by using a maximum power setting of the vehicle, wherein the maximum power setting is not activatable by the vehicle operator. - View Dependent Claims (18, 19, 20)
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Specification