US 12,397,583 B2 · Wheel rotation speed measurement assembly and wheel hub driving system

Abstract

A wheel rotation speed measurement assembly and a wheel hub driving system. The assembly includes a wheel hub bearer, a synchronous shaft and a compiler. The wheel hub bearer has a central shaft and an outer ring. The central shaft is hollow with an inner cavity and forms a torsion-resistant connection with a vehicle suspension. The outer ring can be driven to rotate relative to the central shaft, and forms a torsion-resistant connection with the wheel hub. The synchronous shaft is arranged in the inner cavity and has an end that is close to the first end has a torsion-resistant connection with the outer ring. The compiler is mounted at an end of the synchronous shaft away from the first end. The assembly has a simple structure and can measure the wheel rotation speed directly. Rotation speed output by this compact wheel hub driving system can be accurately measured.

Claims19

Dependent claims

A wheel rotation speed measurement assembly for measurement of a rotation speed of a wheel driven by a wheel hub driving system, the wheel rotation speed measurement assembly comprising:

a wheel hub bearer;
a synchronous shaft;
a compiler;
the wheel hub bearer comprises a central shaft and an outer ring, the central shaft is a hollow shaft having a penetrating inner cavity in an axial direction, the central shaft is used for forming a rotationally-fixed connection with a vehicle suspension;
the outer ring is sleeved at a first end of the central shaft, the outer ring is driveable by an electric motor of the wheel hub driving system to rotate relative to the central shaft, the outer ring forms a rotationally-fixed connection with a wheel hub;
the synchronous shaft is arranged in the inner cavity, an end of the synchronous shaft that is closer to the first end has a rotationally-fixed connection with the outer ring;
and the compiler is mounted at an end of the synchronous shaft that is away from the first end, and the compiler is detected by a sensor in order to measure the rotation speed of the wheel.

4 more elements

A wheel rotation speed measurement assembly for measurement of a rotation speed of a wheel driven by a wheel hub driving system, the wheel rotation speed measurement assembly comprising:

a wheel hub bearer including a central shaft and an outer ring, the central shaft is a hollow shaft having a penetrating inner cavity that extends in an axial direction, the central shaft is configured to form a rotationally-fixed connection with a vehicle suspension;
the outer ring is rotatably mounted at a first end of the central shaft, the outer ring is driveable by an electric motor of the wheel hub driving system to rotate relative to the central shaft and forms a rotationally-fixed connection with a wheel hub;
a synchronous shaft arranged in the inner cavity, an end of the synchronous shaft that is closer to the first end has a rotationally-fixed connection with the outer ring;
a compiler mounted at an end of the synchronous shaft that is away from the first end, and the compiler is configured to be detected in order to measure the rotation speed of the wheel.

1 more element

Dependencies are inferred from the claim text.

Wheel rotation speed measurement assembly and wheel hub driving system

Life of this patent

Wheel rotation speed measurement assembly and wheel hub driving system

Life of this patent

Abstract

Claims19