Advanced Solutions for New Energy Vehicles & Rail Transit
New Energy Vehicles & Rail Transit Solutions
AIMRSE supports the electrification of mobility with precision drivetrain components, thermal management sealing solutions, and lightweight linear motion systems. From high‑speed EV reducers and battery pack thermal interface materials to rugged door actuators for high-speed trains, our products are engineered to meet the stringent NVH, efficiency, and reliability standards of the next-generation transportation sector.
We partner with EV startups, Tier 1 automotive suppliers, and rail equipment manufacturers to deliver components that reduce weight, minimize acoustic signatures, and extend service intervals in demanding passenger and commercial vehicle applications.
Share your torque, speed, and NVH targets with our drivetrain and sealing specialists for a tailored component recommendation.
Connect With an E-Mobility EngineerSupport for IATF 16949 and EN 15085 compliance.
Core Product Solutions for New Energy Vehicles & Rail Transit
Reliable actuation for rail vehicle subsystems.
High-Pressure Hydraulic Cylinders
Compact and lightweight cylinders for rail pantograph deployment, electro-hydraulic brake actuators, and bus kneeling systems. Aluminum construction with hard-anodized bores and low-friction seals for long maintenance intervals.
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Efficient fluid handling for thermal and auxiliary systems.
Hydraulic Pumps, Valves & Motors
12V/24V/48V electric oil pumps for EV transmission lubrication and cooling. Proportional coolant valves for battery thermal management systems. Low-noise gear pumps for rail car door actuation and auxiliary hydraulic circuits.
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High-performance sealing for battery enclosures and electric motors.
Industrial Seals & Engine Gaskets
Formed-in-place gaskets and compression seals for EV battery enclosures (IP67/IP69K). High-speed PTFE shaft seals for e-motor rotors. Thermally conductive gap filler pads and phase-change materials for power electronics cooling.
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High-efficiency drivetrains and linear motion for transportation.
Gearboxes & Linear Motion Components
Low-backlash planetary gearboxes for EV axle reducers. Precision linear guides and ball screws for rail sliding door mechanisms, pantograph positioning, and bus wheelchair lift systems. Electric motors for HVAC and cooling fan applications.
Explore Drivetrain & Motion →Featured Products for E-Mobility & Rail Applications
Low-Noise Planetary Reducers for EV Axles
Precision planetary gearboxes designed for single-speed EV reduction units. Optimized tooth profiles and precision-ground gears (ISO 5–6) achieve transmission error below 0.5 µm, enabling quiet operation and high efficiency across the motor speed range.
Battery Enclosure Sealing & Thermal Management
Formed‑in‑place silicone gaskets and compression seals for EV battery trays and cover lids. Materials are UL94 V-0 flame-retardant and provide IP67/IP69K ingress protection. Thermal interface gap fillers and phase-change materials for prismatic cell cooling plates.
Linear Guides & Ball Screws for Rail Doors
Heavy-duty linear guides and precision ball screws for electric sliding door mechanisms on high-speed trains and metro cars. Corrosion-resistant coatings and long-term lubrication options ensure reliable operation over millions of cycles with minimal maintenance.
NVH & Validation Infrastructure for E-Mobility
AIMRSE supports EV and rail equipment manufacturers with advanced testing and simulation capabilities that ensure components meet the demanding noise, durability, and thermal requirements of modern transportation applications. Our IATF 16949-certified processes provide full traceability and PPAP documentation.
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NVH Semi-Anechoic Chamber for Gearbox Validation
Our semi-anechoic chamber is equipped for EV reducer NVH testing under loaded conditions. Order analysis and sound quality metrics (loudness, sharpness) ensure gear whine is minimized and meets subjective vehicle-level targets. -
High-Speed Gearbox Endurance Test Rigs
Dedicated test stands capable of 20,000 RPM input speeds for EV reducer durability validation. Oil temperature, vibration, and efficiency are continuously monitored over simulated drive cycles. -
Battery Pack Seal Ingress Protection (IP) Testing
We perform IP67/IP69K water and dust ingress testing on battery enclosure seals per ISO 20653. Thermal cycling and vibration testing validate seal performance under realistic vehicle operating conditions. -
Rail Component Fatigue & Corrosion Testing
Linear guides and actuators are tested per EN 14750 for rail vehicle door systems. Salt spray testing (ASTM B117) and cyclic corrosion testing ensure long-term reliability in diverse climatic zones.
Fig. 1. EV planetary gearbox undergoing NVH signature testing in semi-anechoic chamber.
Featured New Energy Vehicle Application Case
High-Frequency Gear Whine at Highway Speeds in Premium EV Crossover
An established automotive OEM encountered an objectionable 1.8 kHz gear whine during 100–120 km/h cruising in their new electric crossover. The noise, traced to the 27th order of the final drive helical gear set, failed internal NVH targets for premium segment vehicles and risked customer satisfaction scores. Initial gear sets with standard micro-geometry exhibited batch-to-batch variation in whine amplitude.
The Solution: Micro-Geometry Optimization and Manufacturing Process Control
AIMRSE performed loaded tooth contact analysis and order tracking to isolate the excitation source. We developed an optimized micro-geometry specification including 6 µm of profile crowning and a modified tip relief to reduce transmission error under light-load cruise conditions. A correlation between gear flank waviness and the 1.8 kHz amplitude was established, enabling the OEM to implement tighter grinding process controls and in-line NVH screening.
Validated Whine Reduction and Improved Sound Quality Score
11 dB(A) Reduction at 1.8 kHz
Post-optimization vehicle tests confirmed an 11 dB(A) reduction in the dominant 27th order whine, rendering the tone inaudible against road and wind noise. Jury ratings improved from "Borderline" to "Excellent." The refined micro-geometry also increased calculated surface durability by 8% due to improved load distribution.
Frequently Asked Questions — E-Mobility & Rail
Can you supply PPAP Level 3 documentation for EV gearbox components?
What seal materials are suitable for dielectric cooling fluids in EV batteries?
Do you offer NVH optimization services for EV reducers?
Are your linear motion components certified for rail applications?
What is the maximum input speed for your EV planetary gearboxes?
Drive the Future of Mobility. Quieter. Lighter. Smarter.
Whether you are developing a next-generation EV drivetrain or upgrading rail car door systems, AIMRSE provides the precision components and engineering validation needed to meet the demands of modern transportation. Let's discuss your project requirements and performance targets.
For PPAP documentation requests or NVH engineering support, email us.
Disclaimer: All products are for industrial B2B use only. Specifications subject to change without notice.
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