Diagnostic system for a vehicle
First Claim
1. A vehicle comprising:
- a chassis;
a plurality of wheels connected to the chassis;
a drivetrain connected to the chassis and configured to supply power to one or more of the wheels, the drivetrain comprising an engine and a transmission;
a brake system connected to the chassis;
a vehicle control system comprising;
an engine controller connected to the engine and configured to control the engine;
a transmission controller connected to the transmission and configured to control the transmission;
a brake controller connected to the brake system and configured to control the brake system;
a vehicle network connected to the engine controller, the transmission controller, and the brake controller, the vehicle network configured to permit communication to and from the engine controller, the transmission controller, and the brake controller;
a primary vehicle controller connected to the vehicle network and configured to communicate with the engine controller, the transmission controller, and the brake controller; and
a vehicle diagnostic system comprising a memory, a processor, and a display, the vehicle diagnostic system connected to the vehicle network and configured to communicate with the engine controller, the transmission controller, the brake controller, and the primary vehicle controller, wherein the vehicle diagnostic system is configured to operate in a diagnostic mode, in which the vehicle diagnostic system is configured to display diagnostic information from at least the engine controller, the transmission controller, and the brake controller,wherein the vehicle diagnostic system is configured for transmitting a signal to force an output from the vehicle control system, and wherein the engine controller is configured to only accept instructions from the primary vehicle controller such that instructions from the diagnostic system to the engine controller to force the output are only communicated indirectly through the primary vehicle controller.
1 Assignment
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Accused Products
Abstract
A vehicle that includes a chassis, wheels, a drivetrain including an engine and a transmission, and a brake system. The vehicle also has a vehicle control system that includes controllers for the engine, the transmission controller, and the brake system, a vehicle network connected to the controllers to permit communication to and from these components, and a primary vehicle controller connected to the network and configured to communicate with the controllers. The vehicle further includes a vehicle diagnostic system that is connected to the network and configured to communicate with the various controllers. The diagnostic system is configured to operate in a diagnostic mode, in which the diagnostic system is configured to display diagnostic information from one or more of the controllers. The diagnostic system may further be configured to operate in a display mode, where the vehicle diagnostic system is configured to display operating information regarding the vehicle.
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Citations
27 Claims
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1. A vehicle comprising:
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a chassis; a plurality of wheels connected to the chassis; a drivetrain connected to the chassis and configured to supply power to one or more of the wheels, the drivetrain comprising an engine and a transmission; a brake system connected to the chassis; a vehicle control system comprising; an engine controller connected to the engine and configured to control the engine; a transmission controller connected to the transmission and configured to control the transmission; a brake controller connected to the brake system and configured to control the brake system; a vehicle network connected to the engine controller, the transmission controller, and the brake controller, the vehicle network configured to permit communication to and from the engine controller, the transmission controller, and the brake controller; a primary vehicle controller connected to the vehicle network and configured to communicate with the engine controller, the transmission controller, and the brake controller; and a vehicle diagnostic system comprising a memory, a processor, and a display, the vehicle diagnostic system connected to the vehicle network and configured to communicate with the engine controller, the transmission controller, the brake controller, and the primary vehicle controller, wherein the vehicle diagnostic system is configured to operate in a diagnostic mode, in which the vehicle diagnostic system is configured to display diagnostic information from at least the engine controller, the transmission controller, and the brake controller, wherein the vehicle diagnostic system is configured for transmitting a signal to force an output from the vehicle control system, and wherein the engine controller is configured to only accept instructions from the primary vehicle controller such that instructions from the diagnostic system to the engine controller to force the output are only communicated indirectly through the primary vehicle controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A vehicle comprising:
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a chassis; an operator cab supported by the chassis and configured to hold an operator; a plurality of wheels connected to the chassis; a drivetrain connected to the chassis and configured to supply power to one or more of the wheels, the drivetrain comprising an engine and a transmission; a brake system connected to the chassis, the brake system comprising a main brake and a parking brake; a vehicle control system connected to the engine, the transmission, and the brake system and configured to control the engine, the transmission, and the brake system; a vehicle network connected to the vehicle control system and configured to permit communication between components of the vehicle control system; and a vehicle diagnostic system comprising a memory, a processor, and a user interface positioned within the operator cab and including a display configured for displaying information and a user input configured to receive input from the operator, the vehicle diagnostic system connected to the vehicle network and configured to communicate with the vehicle control system, wherein the vehicle diagnostic system is configured to operate in at least a display mode and a diagnostic mode, wherein the vehicle diagnostic system is configured to display operating information regarding the vehicle in the display mode, and wherein the vehicle diagnostic system is configured to display diagnostic information from the vehicle control system in the diagnostic mode, wherein the vehicle diagnostic system is configured to monitor all messages on the vehicle network and only take action on message with pre-defined headers, wherein the vehicle diagnostic system is configured to continuously monitor whether the vehicle is stationary and the parking brake is engaged, and wherein the vehicle diagnostic system is configured such that the diagnostic mode is only accessible through the user interface when the vehicle diagnostic system detects that the vehicle is stationary and the parking brake is engaged. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A vehicle diagnostic system configured for use with a vehicle comprising a chassis, a plurality of wheels connected to the chassis, a drivetrain connected to the chassis and configured to supply power to one or more of the wheels, the drivetrain comprising an engine and a transmission, a brake system connected to the chassis, a vehicle control system connected to the engine, the transmission, and the brake system and configured to control the engine, the transmission, and the brake system, and a vehicle network connected to the vehicle control system and configured to permit communication between components of the vehicle control system, the vehicle diagnostic system comprising:
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a computer-readable memory; a processor connected to the memory and configured to be connected to the vehicle network; and a user interface including a display connected to the processor and configured for displaying information and a user input configured to receive input from an operator, wherein the vehicle diagnostic system is configured to operate in a diagnostic mode, in which the processor is configured to perform; monitoring messages from the vehicle control system on the vehicle network; identifying specific messages from the vehicle control system on the vehicle network that are pertinent to desired functionality; displaying diagnostic information related to the specific messages, via the display; receiving an instruction from the operator through the user input, the instruction configured to force an output from at least one of the drivetrain and the brake system; and transmitting a signal to the vehicle control system, in response to receiving the input, the signal configured to cause the vehicle control system to force the output from the at least one of the drivetrain and the brake system, wherein the vehicle diagnostic system is configured for transmitting engine control instructions to the engine through the vehicle control system, such that the engine control instructions from the processer to the engine to force the output are only accepted when received from the vehicle control system. - View Dependent Claims (23, 24, 25)
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26. A computer-assisted method for use in connection with a vehicle comprising a chassis, a plurality of wheels connected to the chassis, a drivetrain connected to the chassis and configured to supply power to one or more of the wheels, the drivetrain comprising an engine and a transmission, a brake system connected to the chassis, a vehicle control system connected to the engine, the transmission, and the brake system and configured to control the engine, the transmission, and the brake system, and a vehicle network connected to the vehicle control system and configured to permit communication between components of the vehicle control system, the vehicle further including a vehicle diagnostic system comprising a computer-readable memory, a processor connected to the memory and configured to be connected to the vehicle network, and a user interface including a display connected to the processor and configured for displaying information and a user input configured to receive input from an operator, the method comprising:
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monitoring messages from the vehicle control system on the vehicle network, by the processor; identifying specific messages from the vehicle control system on the vehicle network that are pertinent to desired functionality, by the processor; displaying diagnostic information related to the specific messages, via the display; receiving an instruction from the operator through the user input at the processor, the instruction configured to force an output from at least one of the drivetrain and the brake system; and transmitting a signal from the processor to the vehicle control system, in response to receiving the input, the signal configured to cause the vehicle control system to force the output from the at least one of the drivetrain and the brake system, wherein engine control instructions are transmitted to the engine through the vehicle control system, such that the engine control instructions from the processor to the engine to force the output are only accepted when received from the vehicle control system. - View Dependent Claims (27)
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Specification