Abstract: A haptic feedback mechanism for steering by wire system includes a motor. Electronic circuitry includes a node and switches for controlling the motor. A voltage sensor at the node and a motion sensor for the DC motor feed a motor control logic module that is operative to: determine if the voltage at the node is above a predetermined threshold; determine if the input motion is above a predetermined speed; and change the switches into an overcurrent protection mode if the voltage is above the predetermined threshold or the input motion is above the predetermined speed. In overcurrent protection mode, electrical power, generated by the input motion, passes through resistance and/or the motor to dissipate while maintaining haptic feedback. An endstop mechanism includes a position sensor coupled to the haptic feedback mechanism for detecting an angular position of the motor to increase feedback torque near an endstop of the motor.

Abstract: A haptic feedback mechanism for steering by wire system includes a motor. Electronic circuitry includes a node and switches for controlling the motor. A voltage sensor at the node and a motion sensor for the DC motor feed a motor control logic module that is operative to: determine if the voltage at the node is above a predetermined threshold; determine if the input motion is above a predetermined speed; and change the switches into an overcurrent protection mode if the voltage is above the predetermined threshold or the input motion is above the predetermined speed. In overcurrent protection mode, electrical power, generated by the input motion, passes through resistance and/or the motor to dissipate while maintaining haptic feedback. An endstop mechanism includes a position sensor coupled to the haptic feedback mechanism for detecting an angular position of the motor to increase feedback torque near an endstop of the motor.

Abstract: A pressure sensor includes a sense element port, a support ring and a plurality of interference fit slits to provide a flexible interference fit between the sense element port and the support ring to form a substantially flush lap joint. The sensor also includes an electronics board inside the support ring and attached to planar mounting tabs which provide a stable mounting. Gel flow barriers protect electronics board features from unwanted non-conductive gel. Double-ended symmetrical, tapered contact springs provide manufacturing cost savings and contribute to improved alignment of an interface connector of the sensor.

Abstract: A pressure sensor includes a sense element port, a support ring and a plurality of interference fit slits to provide a flexible interference fit between the sense element port and the support ring to form a substantially flush lap joint. The sensor also includes an electronics board inside the support ring and attached to planar mounting tabs which provide a stable mounting. Gel flow barriers protect electronics board features from unwanted non-conductive gel. Double-ended symmetrical, tapered contact springs provide manufacturing cost savings and contribute to improved alignment of an interface connector of the sensor.

Abstract: A pressure sensor includes a sense element port, a support ring and a plurality of interference fit slits to provide a flexible interference fit between the sense element port and the support ring to form a substantially flush lap joint. The sensor also includes an electronics board inside the support ring and attached to planar mounting tabs which provide a stable mounting. Gel flow barriers protect electronics board features from unwanted non-conductive gel. Double-ended symmetrical, tapered contact springs provide manufacturing cost savings and contribute to improved alignment of an interface connector of the sensor.

Abstract: A pressure sensor includes a sense element port, a support ring and a plurality of interference fit slits to provide a flexible interference fit between the sense element port and the support ring to form a substantially flush lap joint. The sensor also includes an electronics board inside the support ring and attached to planar mounting tabs which provide a stable mounting. Gel flow barriers protect electronics board features from unwanted non-conductive gel. Double-ended symmetrical, tapered contact springs provide manufacturing cost savings and contribute to improved alignment of an interface connector of the sensor.

Abstract: A pressure sensor includes a sense element port, a support ring and a plurality of interference fit slits to provide a flexible interference fit between the sense element port and the support ring to form a substantially flush lap joint. The sensor also includes an electronics board inside the support ring and attached to planar mounting tabs which provide a stable mounting. Gel flow barriers protect electronics board features from unwanted non-conductive gel. Double-ended symmetrical, tapered contact springs provide manufacturing cost savings and contribute to improved alignment of an interface connector of the sensor.

Abstract: A pressure sensor includes a sense element port, a support ring and a plurality of interference fit slits to provide a flexible interference fit between the sense element port and the support ring to form a substantially flush lap joint. The sensor also includes an electronics board inside the support ring and attached to planar mounting tabs which provide a stable mounting. Gel flow barriers protect electronics board features from unwanted non-conductive gel. Double-ended symmetrical, tapered contact springs provide manufacturing cost savings and contribute to improved alignment of an interface connector of the sensor.

Abstract: A pressure sensing device (10, 40) is shown having a ceramic capacitive sensing element (12) received in a chamber formed in a hexport housing (16). The hexport housing has a fluid passageway (16c) communicating with a recessed chamber (16d) formed in a bottom wall circumscribed by an annular platform shoulder (16e). A thin flexible metal diaphragm (18) is hermetically attached to the bottom wall along the platform shoulder. A curable adhesive resin having a thermal coefficient of expansion and modulus of elasticity appropriately matching that of sensing element (12), such as polyurethane, is cast between the sensing element (12) and the metal diaphragm (18) forming, when cured, a layer bonded to both members resulting in a sensor that is effective in monitoring negative as well as positive fluid pressures.