The "cRIO WheelSim" is a specially designed module for the precise simulation of wheel speed sensors in National Instruments Compact-RIO systems. It is intended for test applications in the power electronics of electric machines, such as in electric and hybrid vehicles, as well as in other industrial areas like control unit development. The module enables a realistic reproduction of wheel speed signals for function, end-of-line, or lifetime testing.
Technical Description
The module serves to realistically reproduce wheel speed signals, as used in vehicles by ABS or ESP systems. The signals are generated in such a way that they closely match the output signals of real wheel speed sensors.
Using optocouplers, the battery voltage (VCC) is pulled to ground to simulate the characteristic square wave pulses of an active or passive wheel speed sensor. The use of optocouplers ensures galvanic isolation, avoiding disturbances and voltage transfers between the signal generators and the downstream electronics.
The "cRIO WheelSim" is a specially designed module for the precise simulation of wheel speed sensors in National Instruments Compact-RIO systems. It is intended for test applications in the power electronics of electric machines, such as in electric and hybrid vehicles, as well as in other industrial areas like control unit development. The module enables a realistic reproduction of wheel speed signals for function, end-of-line, or lifetime testing.
Technical Description
The module serves to realistically reproduce wheel speed signals, as used in vehicles by ABS or ESP systems. The signals are generated in such a way that they closely match the output signals of real wheel speed sensors.
Using optocouplers, the battery voltage (VCC) is pulled to ground to simulate the characteristic square wave pulses of an active or passive wheel speed sensor. The use of optocouplers ensures galvanic isolation, avoiding disturbances and voltage transfers between the signal generators and the downstream electronics.
Technical Specifications
Number of Channels: 3 galvanically isolated channel pairs
Switching Frequency (dynamically configurable): 0-5 kHz
Pulses per Revolution Configurable
Voltage Resistance: 50 VDC
Typical Output Current: 20 mA
Software:
Example software for the cRIO available in LabVIEW
All relevant parameters configurable via software
Areas of Application
Electric and Hybrid Vehicles, Electric Machines, and Other Industrial Applications: Optimization and validation of inverter solutions as well as control devices through precise simulation of wheel speed signals in power-intensive environments, e.g., in drive systems, robotics, and automation technology.
Design Validation and End-of-Line Testing: Functional tests without the use of original sensors.
Research and Development: The module enables efficient development and testing of inverter controls in various applications, thus contributing to increased reliability and performance of power electronics.
Through flexible configuration and integration into existing systems, the “cRIO WheelSim Module offers an efficient solution for sensor simulation in various industrial applications.
Technical Specifications
Number of Channels: 3 galvanically isolated channel pairs
Switching Frequency (dynamically configurable): 0-5 kHz
Pulses per Revolution Configurable
Voltage Resistance: 50 VDC
Typical Output Current: 20 mA
Software:
Example software for the cRIO available in LabVIEW
All relevant parameters configurable via software
Areas of Application
Electric and Hybrid Vehicles, Electric Machines, and Other Industrial Applications: Optimization and validation of inverter solutions as well as control devices through precise simulation of wheel speed signals in power-intensive environments, e.g., in drive systems, robotics, and automation technology.
Design Validation and End-of-Line Testing: Functional tests without the use of original sensors.
Research and Development: The module enables efficient development and testing of inverter controls in various applications, thus contributing to increased reliability and performance of power electronics.
Through flexible configuration and integration into existing systems, the “cRIO WheelSim Module offers an efficient solution for sensor simulation in various industrial applications.
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