Case Study Title: Validation testing for Continuous Variable Transmission (CVT) Oil Pumps
Client Type: Global Powertrain Solution Provider
Scope and Capabilities:
ATA developed a turnkey testing solution to requalify CVT oil pumps for remanufactured transmissions. The system was designed to simulate real-world hydraulic and mechanical operating conditions, validating flow, pressure, torque, and temperature characteristics.
Key Features:
The system design featured a direct-drive servo motor with integrated torque feedback and a safety clutch, providing reliable control of test conditions. Oil pressure and temperature were regulated through PID-controlled loops, ensuring stability and repeatability. Custom fixtures with manual clamping were included to allow quick changeovers between test articles, while inline sensors captured torque, pressure, flow, and temperature data in real time. All equipment was housed within a fully enclosed, safety-interlocked test cell to protect operators and maintain compliance with safety standards.
Deliverables:
The project included a custom test bench with integrated pump-specific fixturing, designed to enable accurate and repeatable evaluations. Real-time performance monitoring was conducted at sampling rates of up to 1 kHz, ensuring precise data capture across all operating conditions. Testing was fully automated through ATA’s Engine Component Test Software (ECTS), which managed sequence control, data collection, and reporting. The system underwent ESA electrical inspection and a third-party safety audit, with on-site training provided to operators. Configurable test logic supported multiple procedures, including leak detection, pressure decay, and performance validation.
