Deere & Company

Trimark Corporation

David Charles Smart

Jason D Walter

Gerald Eric Rains

Brent Allen Smith

Timothy Joel Kilworth

Sean A Mahrt

James Lawrence Sachs

Kerry S Martin

Tim Roszhart

Scott Pilarczyk

Anita L Reichling

Michael Ray Schlichtmann

Curtis Paul Ritter

Stephen P Lang

Dave S Magner

Michael Jonathan Martin

Michael A Waldo

Steven R Procuniar

Ronald Gene Landman

Warren L Schroeder

Arnold S Farber

Robert D Lawson

Jason E Brinkman

Jerry Norman Kitchen

Jeremy T Yoder

Wayne A Andersen

Matthew R Zebarth

The transmission of a recessive bit in a CAN message from a transmitting electronic control unit (ECU) is detected, over a controller area network. A dominant pulse is injected onto the network after a delay time into the detected recessive bit. Behavior of the transmitting ECU is detected, and a sample point for the transmitting ECU is characterized based upon the detected ECU behavior. An action signal is generated based upon the characterized sample point.

Controller area network sample point detection

A system and method for diagnosing connection and communication in an industrial machine includes performing a software check to obtain software data related to software applications, performing a connectivity check to obtain connection status data for one or more controllers, and performing a CAN bus check to obtain CAN bus data. The software data, connection status data, and CAN bus data is analyzed to determine a likely cause of an industrial machine connection or communication issue. A solution to the industrial machine connection or communication issue is output to a technician based on the analyzed data.

Controller area network and connectivity health troubleshooting system

An adaptive network repeater is disclosed for electronically connecting first and second subnetworks. The adaptive network repeater includes a first network interface coupled to the first subnetwork, a second network interface coupled to the second subnetwork, and a controller that monitors communication link status between the first and second subnetworks across the adaptive network repeater. Data received from the first subnetwork at the first network interface is retransmitted to the second subnetwork through the second network interface, and data received from the second subnetwork at the second network interface is retransmitted to the first subnetwork through the first network interface. When the controller determines that the first and second subnetworks want to communicate across the adaptive network repeater at incompatible communication speeds, the controller determines a compatible communication speed and causes the first and second subnetworks to communicate across the adaptive network repeater at the compatible communication speed.

Ethernet adaptive network repeater with auto-link-speed negotiation

Sensor information is received from a set of sensors. First and second sets of machine monitoring data are generated from the sensor information. The first set of machine monitoring data is sent to a control system with a display in an operator compartment of a mobile machine. The second set of machine monitoring data is sent to a processing system that is separate from the control system.

Equipment architecture for high definition data

A system and method for displaying data associated with an embedded system is provided that may include a vehicle data bus, an electronic control unit, and a display unit. The display unit may be configured to render a graphical user interface for the electronic control unit. Data may be exchanged between the electronic control unit and the display unit via the vehicle data bus in partial compliance with a virtual terminal protocol, where full compliance with the virtual terminal protocol requires that the graphical user interface rendered by the display unit be defined and controlled by the electronic control unit. Contrary to the requirement of full compliance with the virtual terminal protocol, the graphical user interface in the display unit may be defined and controlled by the display unit.

Virtual terminal display for a vehicle

A fault injection circuit injects a test signal into a data bus with a normal high logic level and a normal low logic level. The test signal has a greater logic level greater than the normal high logic level of the data bus or a lower logic level lower than the normal low logic level of the data bus. An analog-to-digital converter is coupled to a voltage level detector for sensing an aggregate level of an aggregate signal on the data bus. The aggregate signal is composed of the termination circuit signal and the test signal. A diagnostic tool determines whether a faulty connection between the data bus and a network device exists, where the sensed aggregate level exceeds at least one of the normal high logic level and the normal low logic level.

Method and system for diagnosing a fault or open circuit in a network

A system for providing secured access to and/or control of a vehicle is provided. The system includes a vehicle network such as a CAN. A remote communications device is used for sending a signal for controlling functions associated with the vehicle. There is a receiver operatively connected to the vehicle network and adapted to receive the signal from the remote communications device. At least one access module is adapted to provide control of functions of the vehicle by a user from outside of the vehicle, the access module is electrically connected to the vehicle network. There is at least one user input device associated with the access module and there are a plurality of outputs associated with the access module wherein the access module is adapted to directly control access to the vehicle through control of the plurality of outputs.

Electronic access security and keyless entry system

A network includes a plurality of electronic control units (ECU) connected with each other and receiving messages via a bus, each message having an identifier portion and a data portion. An ECU processes messages by converting the message identifier to a hash value, comparing the hash value to a plurality of index values stored in a lookup table, the lookup table having relevance values corresponding to each index value, discarding the message if a corresponding relevance value indicates that the message is not relevant to the ECU, inserting the message into memory buffer if a corresponding relevance value indicates that the message is relevant to the ECU, and further processing only selected ones of the messages in the buffer. Preferably, the hash value has fewer data bits than that of the identifier portion of the messages, and the number of unique hash values is the same as a number of index values. The number, N, of index values for the lookup table is determined by selecting from a plurality of potential values for N, a particular N value which minimizes a number of non-relevant messages received by the ECU.

Method for processing network messages

A vehicle windshield wiper control system has an electrically driven wiper motor, a wiper control switch coupled to the motor and having a delay position wherein the motor operates intermittently, a vehicle speed sensor, and a control unit coupled to the control switch, the motor, and to the speed sensor. The control operation of the motor, the control unit periodically executes a method or algorithm which causes the system to vary the dwell time between motor operations as a function of sensed vehicle speed, and optionally as a function of an operator adjustable dwell time control.

Windshield wiper control system responsive to vehicle speed

A monitoring or control system includes a plurality of senders or sensors which are coupled to a central control unit by separate cables. The control unit includes a microprocessor which executes an intermittent fault detection algorithm while an operator manually flexes each cable in turn. When a cable with a fault is manipulated the algorithm responds by energizing a horn.

Growing community of inventors

Waterloo, IA, United States of America

David Charles Smart