Speed signal acquisition device based on differential shell

By utilizing the concave-convex structure of the differential housing and Hall effect sensors in new energy commercial vehicles, integrated acquisition of speed signals has been achieved, solving the problems of high cost and long R&D cycle in existing technologies, and improving the market competitiveness and maintenance convenience of the product.

CN224354426UActive Publication Date: 2026-06-12HANGZHOU CONTEMPORARY E-DRIVE TECH CO LTD
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Patent Information

Application Number
CN202521053055.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-06-12
Estimated Expiration
2035-05-27

AI Technical Summary

Technical Problem

Existing technologies for speed signal acquisition in new energy commercial vehicles require customized development, which involves long R&D cycles, high costs, and additional components that increase production costs, making it difficult to meet the regulatory requirements of many countries.

Method used

Utilizing the concave-convex structure of the differential housing and a Hall effect sensor, it is installed on the axle housing via a threaded connection to detect changes in the magnetic field during the rotation of the differential housing, collect speed signals, and integrate them within the axle housing.

Benefits of technology

It reduced material and R&D costs, improved product market competitiveness, simplified maintenance processes, ensured the accuracy of signal acquisition and vehicle operating efficiency, and met the regulatory requirements of multiple countries.

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Abstract

The utility model discloses a differential housing-based speed signal acquisition device, which comprises a speed sensor, an axle housing and a differential housing, the speed sensor is mounted on the axle housing and is arranged opposite to the differential housing, and the speed sensor is used for detecting the change of the differential housing in the rotating process so as to acquire speed signals. The speed sensor is reasonable in arrangement position and convenient to overhaul, maintenance personnel can quickly and conveniently check, maintain or replace the sensor, maintenance time and workload are reduced, maintenance efficiency is improved, normal operation and use efficiency of a vehicle are ensured, and maintenance cost and vehicle stop time loss are reduced.
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