CPC B60S 1/08 (2013.01) [B60S 1/185 (2013.01); B64C 1/14 (2013.01); H02K 7/003 (2013.01); H02K 7/06 (2013.01); H02K 7/083 (2013.01); H02K 7/116 (2013.01); B60S 1/166 (2013.01)] | 15 Claims |
1. A method of operating a windshield wiper system,
wherein the windshield wiper system includes:
a reversible motor that drives a wiper arm,
wherein the reversible motor includes:
a stator;
a rotor that rotates relative to the stator;
a forward shaft segment that is driven by the rotor and is rotationally connected to the wiper arm;
an aft shaft segment that is driven by the rotor, the aft shaft segment including a forward end and an aft end;
a ball nut that translates along the aft shaft segment from rotation of the aft shaft segment;
a forward stop, at a forward end of the aft shaft segment,
wherein the forward stop stops forward translational motion of the ball nut along the aft shaft segment; and
an aft stop at an aft end of the aft shaft segment,
wherein the aft stop stops aft translational motion of the ball nut along the aft shaft segment; and
the reversible motor further includes:
a housing,
wherein the housing has a forward end wall and an aft end wall, and
wherein:
the stator and the rotor are disposed within the housing;
the forward shaft segment extends through the forward end wall of the housing;
the aft shaft segment extends through the aft end wall of the housing; and
the forward stop is formed by the aft end wall of the housing; and
the method comprising:
driving the rotor relative to the stator;
driving the aft shaft segment of the motor shaft with the rotor;
translating the ball nut from rotation of the aft shaft segment between the forward stop and the aft stop; and
stopping the reversible motor when the ball nut contacts either of the forward stop, at the aft end wall of the housing, and the aft stop while the aft shaft segment rotates.
|