Anti-Pinch Smart Step Safety Systems

-- Steady & Reliable Manufacturer --

Technical Overview

Our smart step safety systems utilize a dual-redundancy protection model, combining high-speed motor current sensing with positional encoder feedback. The ECU continuously monitors the motor's power consumption and acceleration profile. Any instantaneous spike in current (indicating physical resistance) or unexpected deviation from the position profile triggers an immediate safety response: a soft-stop followed by a programmed reversal of motion.

This high-speed logic is effective against both small and large obstructions during both the deployment and retraction cycles. The system also includes thermal overload protection for the motor and a fail-safe retraction mode in case of vehicle power loss.

Introduction

Safety is the most critical feature of any powered accessory. Our anti-pinch systems are not just compliant; they are engineered for superior speed and sensitivity, protecting passengers, pets, and property from obstruction during movement. This advanced, proactive safety logic defines a premium, reliable power step solution.

BHTC integrates this technology into every step system, providing distributors and end-users with the highest level of assurance regarding the accessory's operation. We prioritize milliseconds in reaction time to ensure complete protection.

Applications

Family Vehicles: Essential for protecting children and pets who may be near the step during operation.
Regulated Markets: Mandatory feature for sales in regions with strict consumer protection and vehicle safety standards.
Luxury Vehicles: A critical, high-end feature expected by discerning luxury vehicle owners.
Confined Spaces: Valuable when operating the steps in tight garages or near walls, preventing damage to the mechanism and property.

Specification

Protection Method	Dual Redundancy (Current Sensor + Positional)
Reaction Time	Milliseconds (Instantaneous Stop Logic)
Stop Profile	Soft-Stop and Automatic Reverse
System Test Cycle	Integrated Self-Test on Every Start-Up
Motor Protection	Thermal Overload Cut-Out
Compliance Standard	Exceeds Global Anti-Pinch Requirements
Obstruction Sensitivity	Adjustable via Firmware (for Debris/Ice)

Common Questions

Q: How can I verify that the anti-pinch system is working correctly?
A: The system performs a self-test on every power cycle. To manually check, gently place a soft, non-damaging object (like a shoe or foam block) on the step's path. The step should immediately stop and reverse direction.

Q: Does the system account for operation in winter conditions with snow and ice?
A: Yes. The firmware allows for an adjustable sensitivity threshold. For extreme cold and known debris, the initial force can be increased to break light ice before the full anti-pinch logic engages, preventing nuisance stopping.

Q: What happens if the motor overheats from excessive, repeated operation?
A: The integrated thermal overload cut-out will temporarily shut down the motor and signal the ECU to prevent damage. The step will resume normal operation once the motor temperature returns to a safe level.

Core Features

Millisecond Reaction: The high-speed processor reacts faster than the human eye can perceive, minimizing the force exerted on an obstruction.
Full Cycle Protection: Active sensing is maintained throughout the entire deployment and retraction cycle, from start to final stowed position.
Smart Sensitivity: The ECU differentiates between a minor resistance (like a stick or light debris) and a genuine obstruction, preventing unnecessary false stops while maintaining core safety.
Fail-Safe Design: In the event of an electrical short or sudden power loss, the mechanism is designed to prevent unintended, uncontrolled movement.

Production & Customization Services

Production includes Pre-Shipment Calibration and Certification of the anti-pinch sensitivity level for each batch. We provide Detailed Safety Compliance Documentation for all regulated markets.

Customization Opportunities:

**Audible Warning Integration: **Offering an optional module that emits a subtle, low-decibel warning tone during step movement.
Custom Safety Protocol: Programming unique safety behaviors (e.g., locking the step out indefinitely after a third obstruction event) for specific fleet requirements.
Remote Diagnostics: Providing a safety log within the ECU firmware accessible via a diagnostic tool to record all obstruction events for post-sale analysis.

Material Selection Guide

The sensors utilize Non-Contact Positional Encoders (Hall Effect or Optical) for long-term reliability without physical wear.

Wiring harnesses for the sensor connections use Shielded Cables to prevent electromagnetic interference (EMI) from the motor and vehicle electronics from corrupting the critical safety signals.

The motor driver chips within the ECU are rated for High Current and Rapid Switching to ensure instantaneous cut-off capability for the anti-pinch function.

about Bohai

R&D and manufacturing of mid-to-high-end SUV electric pedals.

Bohai Automotive Technology (Zhejiang Huzhou) Co., Ltd. was established in 2014. It is a technology-based enterprise specializing in R&D China Anti-Pinch Smart Step Safety Systems Manufacturers and Wholesale Anti-Pinch Smart Step Safety Systems Suppliers The company is located on the southern bank of the beautiful Taihu Lake in the hinterland of the Yangtze River Golden Triangle-Changxing County, Huzhou City, Zhejiang Province. It is about 150 kilometers away from Shanghai, Hangzhou, Nanjing, Ningbo, Suzhou, Wuxi and other large and medium cities.

know more

Language

+86-400-6265788