Latest Products
Contact Us
Hebei Nanfeng Automobile Equipment (Group) Co.,Ltd
Phone: +86 18811334770
Tel: +86 0317 8620396
Tel: +86 010 58673556
Candy Jiao
E-mail: nh.jiao@auto-parkingheater.com
Email: nh.li@auto-parkingheater.com
Add: Room 505, Building B, Free Town Center, No.58, East Third Ring South Road, Chaoyang District, Beijing, 100022, P.R.China
Electrohydraulic power steering pump assembly for bus
The steering pump is the power source of the hydraulic power steering system, commonly known as the power steering pump. Its function is to provide high-pressure hydraulic oil to the steering gear, reducing the amount of effort required for the driver to turn the steering wheel. It is widely used in passenger cars, commercial vehicles, and construction machinery.
Description
If you're looking for the Electrohydraulic power steering pump assembly for bus, welcome to wholesale the product from our factory. As one of the leading manufacturers and suppliers in China, we will offer you the best service and fast delivery. Now, check the quotation with our seller.
Electrohydraulic Power Steering Pump Assembly for Bus
Products Description
| High voltage module motor parameters (controller 400-700VDC) | |||
| Motor & Controller Model | EHPS-38CBJJNF01-010 | ||
| Motor Rated Voltage (VAC) | 380 | Temperature Control Resistor Type | None |
| Rated Power (kW) | 5 | Rated Speed (r/min) | 1500 |
| Maximum Output Power (kW) | 10 | Rated Frequency (Hz) | 100 |
| Induced Voltage at Rated Speed (VAC) | 286.1 | Number of Motor Poles | 8 poles (4 pairs of poles) |
| Rated Phase Current (A) | 11 | Line Resistance (Ω) (at 20°C) | 1.45 |
| Peak Phase Current (A) | 23 | Duty Cycle | S2-3min |
| D-Axis Inductance (mH) | 8.035 | Rated Efficiency (%) | ≥92% |
| Q-Axis Inductance (mH) | 22.08 | Insulation Grade | Class H |
| Rated Torque (Nm) | 31.83 | Protection Grade | IP68 |
| Peak Torque (Nm) | 63.7 | Cooling Method | Natural cooling |
| Speed Range (r/min) | 600-1800 | Ambient Operating Temperature | -40~+85℃ |
| Motor Type | SVC sensorless permanent magnet synchronous motor | ||
| Low voltage module motor parameters (24VDC) | |||
| Peak Power (kW) | 2.5 | Rated speed (r/min) | 1200 |
| Inductive Current at Rated Speed (VAC) | 14.25 | Rated frequency (Hz) | 80 |
| Peak Phase Current (A) | 145 | Number of motor poles | 8 poles (4 pairs of poles) |
| D-Axis Inductance (mH) | 0.03877 | Wire resistance (Ω) | 23 |
| Q-Axis Inductance (mH) | 0.09948 | Duty cycle | S2-3min |
| Peak Torque (Nm) | 23.8 | Ambient operating temperature | -40~+85℃ |
| Motor Type | Permanent magnet synchronous | ||
| 24V EPS motor controller technical parameters | ||
| Item | Parameters | Notes |
| Peak Power (kW) | 2.5 | |
| Peak Output Current (A) | 150 | Good ventilation |
| Peak Current Operating Time (s) | 60 | Good ventilation |
| Carrier Frequency (Hz) | Maximum 10K | |
| Control Power Supply Input Voltage Range (V) | 9-36 | |
| Power Supply Input Voltage Range (V) | 16-32 | |
| Rated Voltage (V) | 24 | |
| Output Frequency (Hz) | 0-250 | |
| Cooling Method | Natural cooling | |
| IP Rating | IP68 | |
| Storage Temperature | -40~+85℃ | |
Overall System Components
Electric Pump Assembly (Core): Brushless permanent magnet motor + hydraulic pump (mostly vane pumps, some commercial vehicles use gear pumps) + built-in ECU controller; many are integrated units.
Oil reservoir, high and low pressure oil lines, steering gear (recirculating ball/rack and pinion).
Sensors: Steering wheel torque sensor, steering angle sensor, vehicle speed signal (acquired via CAN bus).
Power Supply: Passenger vehicles mostly use 12V; commercial vehicles/new energy vehicles use 24V/high-voltage DC-DC step-down power supply.
Products Details
Working Principle
Working Principle
When the driver turns the steering wheel, torque and steering angle sensors collect signals, and the vehicle's CAN bus provides the vehicle speed signal, which is then transmitted to the E-HPS controller.
The ECU calculates the required power steering flow and pressure based on the vehicle speed and steering torque: Low speed/Standing: The motor operates at high speed, outputting a large flow, resulting in light steering; High speed: The motor speed decreases, reducing power steering, making the steering wheel heavier and improving driving stability; Straight driving with almost no steering: The motor operates at low speed in standby mode, consuming almost no power (power supplied on demand).
Products Application
New Energy Commercial Vehicles (Primary Scenarios):
Pure electric light trucks, medium trucks, electric vans, electric buses, and electric coaches. These vehicles lack an internal combustion engine and engine belt, making traditional belt-driven HPS systems unusable.
High vehicle load and significant steering resistance; ordinary EPS motors are underpowered and costly; EHPS hydraulic systems offer high output torque and are technologically mature and reliable. Some heavy-duty electric commercial vehicles utilize dual-power EHPS systems. In the event of a high-voltage failure, the battery provides emergency power to ensure steering safety.
Our Company
Our Exhibition
Hot Tags: Electrohydraulic power steering pump assembly for bus, China, factory, suppliers, manufacturers, seller, wholesale, quotation
You Might Also Like
