Magnetism prevention structure of a motor assist apparatus for a vehicle
First Claim
1. A magnetism prevention structure of a motor assist apparatus for a vehicle, the motor assist apparatus having an electric motor that can function as a power generator and is driven by electrical energy, the motor assist apparatus being directly connected with an engine driven by combustion of fuel and including a motor rotor and a motor stator disposed for correspondence to the motor rotor, comprising:
- a rotational position sensor including a sensor rotor and a sensor stator disposed for correspondence to the sensor rotor, so as to detect a rotational position of said motor rotor relative to said motor stator, wherein said motor stator and said sensor stator are each attached to a motor case installed in a cylinder block of said engine, and said motor rotor and said sensor rotor are each attached to a rotor installation member installed in a crank shaft of said engine; and
said motor assist apparatus including a magnetism prevention part integrated with a motor case to prevent magnetic flux and/or electric wave noise from leaking from said electric motor between said motor rotor and said motor stator and a signal line connected to said sensor stator of said rotational position sensor and/or said sensor stator.
1 Assignment
0 Petitions
Accused Products
Abstract
The purpose of this invention is to prevent magnetic flux and electric wave noise leaking from electric motor from affecting the magnetism prevention components of other materials, to reduce the number of assemblies and number to be assembled, and to fulfill reduction of cost. For this purpose, the present invention provides a magnetism prevention structure of a motor assist apparatus for a vehicle, having an electric motor which is directly connected with an engine and consists of a motor rotor and a motor stator, comprising: a rotational position sensor which consists of a sensor rotor and a sensor stator, wherein said motor stator and said sensor stator are each attached to a motor case installed in a cylinder block of the engine. The motor rotor and the sensor rotor are each attached to a rotor installation member that is installed in a crank shaft; and the motor assist apparatus which integrates a magnetism prevention part to prevent magnetic flux and/or electric wave noise leaking from the electric motor from leaking through the motor case between motor rotor and motor stator of electric motor and a signal line connected to the sensor stator of said rotational position sensor and/or the sensor stator.
2 Citations
10 Claims
-
1. A magnetism prevention structure of a motor assist apparatus for a vehicle, the motor assist apparatus having an electric motor that can function as a power generator and is driven by electrical energy, the motor assist apparatus being directly connected with an engine driven by combustion of fuel and including a motor rotor and a motor stator disposed for correspondence to the motor rotor, comprising:
-
a rotational position sensor including a sensor rotor and a sensor stator disposed for correspondence to the sensor rotor, so as to detect a rotational position of said motor rotor relative to said motor stator, wherein said motor stator and said sensor stator are each attached to a motor case installed in a cylinder block of said engine, and said motor rotor and said sensor rotor are each attached to a rotor installation member installed in a crank shaft of said engine; and
said motor assist apparatus including a magnetism prevention part integrated with a motor case to prevent magnetic flux and/or electric wave noise from leaking from said electric motor between said motor rotor and said motor stator and a signal line connected to said sensor stator of said rotational position sensor and/or said sensor stator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A motor assist apparatus for a vehicle including an electric motor driven by electrical energy and functioning as a generator, the electric motor being directly connected to an engine driven by the combustion of fuel and including a motor rotor and a motor stator disposed adjacent the motor rotor, said motor assist apparatus comprising:
-
a rotational position sensor for detecting the rotational position of the motor rotor relative to the motor stator, and including a sensor rotor and a sensor stator disposed adjacent the sensor rotor, the sensor stator and the motor stator being mounted to a motor case of said motor assist apparatus, and the sensor rotor and the motor rotor being mounted for rotation with a crankshaft of the engine; and
a non-magnetic member for shielding the rotational position sensor from at least one of magnetic flux and electrical wave noise emitted from the electric motor, said non-magnetic member being integral with the motor case and being disposed between the electric motor and the rotational position sensor. - View Dependent Claims (10)
-
Specification