Vehicle Applications
Provide a Complete Vehicle Control and Information System with CANLink®
Typical multiplexing applications on a mobile vehicle are described below.
Console/Dash
Typical Inputs: joysticks, dash switches, potentiometers, operator presence switches.
Typical Outputs: gauges, displays, LEDs, indicator lights, alarms.
- Simplify operator controls, eliminate hydraulics, linkages
- Centralize vehicle data and controls
Power System
Typical inputs: resistive, pressure and temperature sensors, speed pickups and electronic engine or transmission communications.
Typical outputs: servo valve pump control, starter solenoids, throttle servos, and electronic engine or transmission communications.
- Access vehicle engine control module
- Log data for maintenance and troubleshooting
- Match power curve to specific vocational requirements
Booms and Lifts
Typical inputs: angle sensors, pressure sensors, and position sensors.
Typical outputs: displays, alarms, limit controls.
- Cut costs by eliminating multiple slip-rings
- Multiple levels of RCL/LMI safety and control
- Centralized operator display, integration with actuators
Lights and Outriggers
Typical outputs: lights, valves, relays and alarms.
- Eliminate wiring harnesses and relays
Valve Banks
Typical inputs: resistive, pressure and temperature sensors.
Typical outputs: servo valve pump control, proportional valves, on/off valves.
- Reduce leak-prone hydraulic connections, cut costs
- Add proportional PWM controls for improved performance
Remotes and Communication
Typical inputs: modem connections, GPS inputs and remote controls.
- Allows remote control of any multiplexed function
- Wired or wireless operation, on-vehicle or off-vehicle
- Allows fast and even remote access to vehicle diagnostics and maintenance records for simplified fleet management
Vehicle applications
Electronic control and multiplexing can serve to enhance performance on a wide variety of on or off-highway vehicles. Below are just a few examples.
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Mobile Crane
The size and complexity of mobile cranes can easily produce a nightmare of vehicle wiring that is very difficult and expensive to install and troubleshoot. Multiplexing reduces wiring complexity, including the number of slip rings required to pass electrical circuitry through the swing drive between the carrier and superstructure. It also allows simplified troubleshooting through the used of Windows-based diagnostic software tools. Remote controls can also simplify operation of various functions from vantage points outside of the cab.
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Platform control can be accomplished easily using multiplex wiring through the boom or wireless control modules. |
Aerial Work Platform
For aerial work platform applications, multiplexing can easily accommodate multiple operator stations in the platform or on the ground and using wired or wireless remote controls. The system could control platform rotation, hydrostatic transmission and outrigger operation, including safety interlock logic to prevent dangerous operating conditions while providing smooth, precise work platform positioning. Simplified wiring can also reduce the amount of slip rings required to route control circuitry through the swing drive.
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Graphical displays in the cab provide operating data, diagnostics, and even video input from cameras used for vehicle positioning. |
Road Building Machine
Road building vehicles such as recyclers and skid-steer loaders are often offered with a multitude of variations or attachments. Multiplexing systems allow the pre-wiring for these options for addition of control module hardware only as needed to implement the options. The software for additional options can be included on the base unit and options or attachments can be automatically recognized when added on the production line or by the dealer or end user. The use of identification pins in the wiring harness can also allow identical control modules to function completely differently depending on where it is mounted on the vehicle and what job it is required to do in that location.
