Electric motor based holding control systems and methods
First Claim
1. A holding system comprising:
- a holding device control module configured to (i) provide a power output and (ii) generate an open signal, a close signal, and a force signal, wherein the force signal indicates a requested output torque of an electric motor;
a motor control module configured to generate feedback signals indicating a stall condition of a holding device, wherein the feedback signals are generated by a sensor mounted within a housing of the electric motor; and
a cable assembly comprising;
a first connector configured to connect to the holding device control module via a cable, wherein the cable is connected between the holding device control module and the cable assembly,a second connector connected to the motor control module and providing the open signal and the close signal from the holding device control module to the motor control module, wherein the second connector provides the feedback signals from the motor control module to the holding device control module,a third connector connected to the motor control module and providing the power output or the force signal from the holding device control module to the motor control module, andsignal lines separate from the cable assembly and connected between the (i) first connector and (ii) at least one of the second connector and the third connector.
1 Assignment
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Accused Products
Abstract
A holding system includes a force control module configured to generate a force signal to cause a holding device to perform at least one of a hold stroke and a release stroke. The hold stroke includes transitioning a gripping element of the holding device to a first position to grip an object. The release stroke includes transitioning the gripping element to a second position to release the object. The holding device is non-backdrivable. A stall detection module is configured to (i) monitor a sensor signal received from a sensor of an electric motor assembly of the holding device and (ii) detect a first stall condition of an electric motor based on the sensor signal. A shut off module is configured to shut off current to the electric motor based on the detection of the first stall condition during or at an end of the release stroke.
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Citations
10 Claims
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1. A holding system comprising:
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a holding device control module configured to (i) provide a power output and (ii) generate an open signal, a close signal, and a force signal, wherein the force signal indicates a requested output torque of an electric motor; a motor control module configured to generate feedback signals indicating a stall condition of a holding device, wherein the feedback signals are generated by a sensor mounted within a housing of the electric motor; and a cable assembly comprising; a first connector configured to connect to the holding device control module via a cable, wherein the cable is connected between the holding device control module and the cable assembly, a second connector connected to the motor control module and providing the open signal and the close signal from the holding device control module to the motor control module, wherein the second connector provides the feedback signals from the motor control module to the holding device control module, a third connector connected to the motor control module and providing the power output or the force signal from the holding device control module to the motor control module, and signal lines separate from the cable assembly and connected between the (i) first connector and (ii) at least one of the second connector and the third connector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification