RV
Golf Cart Sightseeing Car
Agricultural Machinery
E-Motorcycle
Yacht
ATV
Karts
Scrubbers
Compact and lightweight design, provide powerful acceleration capability and a longer driving range
Supporting user to adjust the maximum speed limit, maximum acceleration rate and energy regenerative intensity
Permanent magnets and 6-phase hair-pin motor technology provide higher efficiency
Simplified Plug and Play harness for easy installation and flexible CAN compatibility with RVC, CAN2.0B, J1939 and other protocols
16000rpm high-speed motor provides the potential to increase maximum vehicle speed or to use a higher ratio in the transmission to enhance launch and gradability performance
Signals and functionalities interaction with the battery by CANBUS, to ensure the safety use and extend the lifetime of battery over the whole life cycle
15 kW/60 Nm high output of motor, leading technologies in the
design of motor and power module to improve electrical and thermal performance
Voltage and Current monitor & protection, Thermal monitor & derating, Load dump protection, etc.
Leading vehicle motion control algorithms eg. Active Anti-Jerk function enhance the driving experience
Rigorous and strictest design, testing and manufacturing standards to ensure high quality
| Parameters | BLM4815D |
| Operation Voltage | 24-60V |
| Rated Voltage | 51.2V for 16s LFP 44.8V for 14s LFP |
| Operating Temperature | -40℃～55℃ |
| Maximum AC Output | 250 Arms |
| Peak Motor Torque | 60 Nm |
| Motor Power@48V,Peak | 15 KW |
| Motor Power@48V,>20s | 10 KW |
| Continuous Motor Power | 7.5 KW @ 25℃,6000RPM 6.2 KW @ 55℃,6000RPM |
| Maximum Speed | 14000 RPM Continuous, 16000 RPM Intermittent |
| Overal Efficiency | max 85% |
| Motor Type | HESM |
| Position Sensor | TMR |
| CAN Communication Protocol |
Customer Specific; eg. CAN2.0B 500kbps or J1939 500kbps; |
| Operation Mode | Torque Control/Speed control/Regenerative mode |
| Temperature Protection | Yes |
| Voltage Protection | Yes with Loaddump Protection |
| Weight | 10 KG |
| Diameter | 188 L x 150 D mm |
| Cooling | Passive cooling |
| Transmission Interface | Customer Specific |
| Case Construction | Cast Aluminum Alloy |
| Connector | AMPSEAL Automotive 23way connecoter |
| Isolation Level | H |
| IP Level | Motor: IP25 Inverter: IP69K |
A drive motor converts electrical energy into mechanical energy to create motion. It acts as the primary source of movement in a system, whether that’s rotating wheels, powering a conveyor belt, or spinning a spindle in a machine.
In different sectors:
In electric vehicles (EVs): The drive motor powers the wheels.
In industrial automation: It drives tools, robotic arms, or production lines.
In HVAC: It runs fans, compressors, or pumps.
Checking a motor drive (especially in systems using VFDs or motor controllers) involves both visual inspection and electrical testing:
Basic Steps:
Visual Check:
Look for damage, overheating, dust buildup, or loose wiring.
Input/Output Voltage Check:
Use a multimeter to verify input voltage to the drive.
Measure output voltage going to the motor and check for balance.
Check Drive Parameters:
Use the drive’s interface or software to read fault codes, run logs, and check configuration.
Insulation Resistance Test:
Perform a megger test between motor windings and ground.
Motor Current Monitoring:
Measure the operating current and compare it with the motor’s rated current.
Observe Motor Operation:
Listen for unusual noise or vibration. Check if the motor speed and torque respond correctly to control inputs.
Drive motors can transmit mechanical power to the load using various transmission types, depending on the application and design.
Common Transmission Types:
Direct Drive (No transmission)
The motor is connected directly to the load.
Highest efficiency, lowest maintenance, quiet operation.
Gear Drive (Gearbox transmission)
Reduces speed and increases torque.
Used in heavy-duty or high-torque applications.
Belt Drive / Pulley Systems
Flexible and cost-effective.
Moderate efficiency with some energy loss due to friction.
Chain Drive
Durable and handles high loads.
More noise, slightly lower efficiency than direct drive.
CVT (Continuously Variable Transmission)
Provides seamless speed changes in automotive systems.
More complex, but efficient in specific ranges.
Which has the highest efficiency?
Direct Drive systems typically offer the highest efficiency, often exceeding 95%, since there’s minimal mechanical loss due to the absence of intermediate components like gears or belts.
Suitable for Forklift Trucks, Aerial Work Platforms, Golf Carts, Sightseeing Cars, Agricultural Machinery, Sanitation trucks, E-motorcycle, E-karting, ATV, etc.
Required torque and speed
Power source (AC or DC)
Duty cycle and load conditions
Efficiency
Environmental factors (temperature, humidity, dust)
Cost and maintenance
Brushless motors (BLDC) eliminate the mechanical brushes used in traditional DC motors. They are popular due to:
Higher efficiency
Longer lifespan
Lower maintenance
Quieter operation
Motor torque (Nm) is typically calculated using the formula:
Torque = (Power × 9550) / RPM
Where power is in kW and RPM is the motor speed.
Overheating
Excessive noise or vibration
Low torque or speed output
Tripping breakers or blowing fuses
Abnormal smells (burnt windings)
Use energy-efficient motor designs
Match motor size to application needs
Use VFDs for better speed control
Perform regular maintenance and alignment
Maintenance intervals depend on usage, environment, and motor type, but general checks are recommended:
Monthly: Visual inspection, check for overheating
Quarterly: Bearing lubrication, vibration check
Annually: Electrical testing, insulation resistance testing
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