SPECIFICATION FOR APPROVAL
HWBS (Hidden Wire Brake Sensor) (VERSION): V2.0
1. Function introduces
HWBS is a brake sensor, that can be used on electric bicycles and electric motorcycles.
The features of HWBS is, can use generic brakes, without the use of a special brake lever. The sensor installed on the soft shaft of the brake detects the movement of brake lines online. HWBS is a long life, small volume, free maintenance, micro-consumption electronic, low voltage power supply, and non-contact detection of magnetic sensors. Internal PLL circuits can ensure a stable output even use in vibration situations.
2. Size, Material & Photos
Aluminum shell and nylon stopper, are very good oxidation stability and aging characteristics.
3. Specifications & Reliability
- Rated Voltage: 4.5-6V (DC)
- Current without brake: 2mA
- Current with brake: 3.6mA
- Lead tension: >20N
- Corresponding time when braking: <0.001S
- Corresponding distance: 2-3mm
- Mechanical life: >2M times
- Electrical life: >20M times
- Insulation dry condition: >20M ohm
- Insulation wet condition: >2M ohm
4. Connector & Cable
- The connector can be customized.
- The length of the cable also can be customized.
- Red: +5V, Yellow: GND, Blue: Brake Signal.
5. Dependability Test
| Test item | Test conditions | Result |
| Tensile tests of the connector | >20N, 60s | OK |
| Tensile tests of the cable | >30N, 60s | OK |
| Lead to shell insulation No.1 | Dry, humidity 80% | >20M |
| Lead to shell insulation No.2 | Spray | >20M |
| High-temperature test | 90±2℃ 5V >2hours | OK |
| Low-temperature test | -20±2℃ 5V >8hours | OK |
| Vibration test | 20Hz 5V 2hours | OK |
| Constant damp | 45±2℃ 5V >2hours Humidity 90% | OK |
| Spray | 5V >2hours | OK |
6. Certifications
With RoHS, CE, and IP65 certificates.
7. Assemble & Adjustment
The brake steel soft shaft is directly into the middle hole HWBS. No additional adjustment about the HWBS.
8. Package & Quantity
- Every 20 HWBS in a closed bag
- 600 HWBS in a carton
- Size of the carton: 440*380*210 (cm)
- Label: Customer name, Address, Name, P.O. number, Quantity, Cable length, and Date of shipment.
9. Signature the SPEC
This confirmation must be approved by both sides, any one-party modification is invalid. After receiving the confirmation from each other, 7 workdays must be signed confirmation, overdue as default agreement.
