APT Engineers Complete On-Site Dynamic Testing of New Off-Road E-Bike Controller

Recently, the R&D team of APT carried out full-scale real-vehicle field testing for the new generation off-road electric motorcycle controller at an outdoor test ground, with software, hardware and test engineers all present to conduct comprehensive real-vehicle verification covering power output calibration, wheelie extreme load conditions and overall vehicle dynamic stability.

The test vehicle was fitted with APT self-developed drive controller designed for high-torque off-road electric motorcycles, paired with a professional lifting test stand to simulate high-intensity riding scenarios including hard acceleration and large-angle wheelies, replicating extreme operating conditions that end-users frequently encounter during off-road rides. All team members performed clear role-based tasks to streamline the whole testing process. Hardware engineers monitored real-time data including bus current, temperature and power hardware load of the controller, recording operational performance of power tubes and heat dissipation structures under maximum load. Software engineers connected laptops to the upper computer to read and write underlying controller parameters on-site, dynamically calibrating torque curves, anti-slip control logic and wheelie power limitation strategies, while optimizing the linearity of throttle response simultaneously. Test engineers recorded vehicle feedback and controller operation logs under each working condition, sorted out data from abnormal operating scenarios, and checked matching deviations between software and hardware synchronously.

Targeting the frequent wheelies and steep slope climbing typical of off-road vehicles, this field test focused on verifying three core technical advantages of APT controllers:

1.High-Precision Closed-Loop Torque Control

The controller collects motor rotor position signals at millisecond intervals. During wheelie maneuvers, it dynamically distributes output torque to deliver strong instant power for rapid takeoff while restraining overloaded power output that could cause loss of vehicle control. It balances explosive power and stable maneuverability with smooth, predictable power delivery.

2.Wide-Range Hardware Load Endurance

The self-developed power hardware solution features an optimized heat dissipation channel. During long-duration continuous wheelies and full-throttle acceleration, the controller maintains temperature within a safe range without power derating or hardware protective shutdown, supporting prolonged high-intensity off-road use.

3.Customizable Underlying Software Tuning System

Matched with APT self-developed upper computer tuning tool, engineers can adjust dozens of parameters on-site without vehicle disassembly, including throttle curves, takeoff torque, wheelie power thresholds and overcurrent protection limits. This greatly shortens the calibration cycle for OEM vehicle manufacturers to match customized power characteristics.

The entire outdoor field test formed a closed-loop workflow, covering test setup, vehicle installation, dynamic calibration and data review. Cross-disciplinary engineers resolved software-hardware matching and power control issues under extreme operating conditions on location, and retained complete datasets from multiple groups of limit riding tests in one session.

APT adheres to an integrated self-research roadmap for both software and hardware. With a full team of engineers conducting real-scene vehicle verification in advance, we optimize controller performance under various extreme riding conditions at the early R&D stage. Moving forward, the team will iterate firmware versions based on data collected from this field test to further refine power control logic for off-road electric motorcycles, delivering permanent magnet drive controller solutions with superior stability, flexible tuning capability and reliable performance under extreme working conditions for global vehicle OEM partners.