Electrical testing system and method
First Claim
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1. A method for measuring and determining cranking RPM of a vehicle, the method comprising the steps of:
- measuring current and/or voltage of a portion of an electrical system of the vehicle at a load module during at least a portion of a starting cycle, the load module configured to apply loads to the vehicle'"'"'s electrical system; and
in one or more computing devices,determining a first extreme current and/or voltage point of the portion of the electrical system after the starting cycle has begun to designate a first reference time,determining a second current and/or extreme voltage point of the portion of the electrical system after the first reference time to create a second reference time,determining an amount of time between the first and second reference times,determining a number of compression strokes per minute based on the amount of time between the first and second reference times, anddetermining the cranking RPM of the vehicle based on the number of compression strokes per minute and number of cylinders in the vehicle,wherein the determining steps are performed in a control module located remotely from the load module.
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Abstract
A method and system for measuring, determining and/or analyzing the cranking RPM of a vehicle is provided. The system measures the voltage of at least a portion of a vehicle'"'"'s electrical system to determine high and/or low voltage time periods during at least a portion of a starting or cranking cycle. The time between high and/or low voltage points can then be used, along with the number of cylinders in the vehicle, to determine the cranking RPM of the vehicle. The system may include a load module and a control module that are removably coupled to one another in first and second configurations.
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19 Claims
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1. A method for measuring and determining cranking RPM of a vehicle, the method comprising the steps of:
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measuring current and/or voltage of a portion of an electrical system of the vehicle at a load module during at least a portion of a starting cycle, the load module configured to apply loads to the vehicle'"'"'s electrical system; and in one or more computing devices, determining a first extreme current and/or voltage point of the portion of the electrical system after the starting cycle has begun to designate a first reference time, determining a second current and/or extreme voltage point of the portion of the electrical system after the first reference time to create a second reference time, determining an amount of time between the first and second reference times, determining a number of compression strokes per minute based on the amount of time between the first and second reference times, and determining the cranking RPM of the vehicle based on the number of compression strokes per minute and number of cylinders in the vehicle, wherein the determining steps are performed in a control module located remotely from the load module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for analyzing cranking RPM of a vehicle comprising:
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a testing system configured to be coupled to at least a portion of an electrical system of the vehicle, wherein the testing system comprises a load module and a control module, the testing system is configured to; measure current and/or voltage of the portion of the electrical system at the load module during at least a portion of a starting cycle of the vehicle, the load module configured to apply loads to the vehicle'"'"'s electrical system, determine a first extreme current and/or voltage point of the portion of the electrical system after the starting cycle has begun to designate a first reference time, determine a second extreme current and/or voltage point of the portion of the electrical system after the first reference time to create a second reference time, determine an amount of time between the first and second reference times, determine a number of compression strokes per minute based on the amount of time between the first and second reference times, and determine the cranking RPM of the vehicle based on the number of compression strokes per minute and number of cylinders in the vehicle, wherein the determining steps are performed in a control module located remotely from the load module. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification