A ball mount for measuring tongue weight of a trailer is disclosed. The ball mount can include a ball portion having a hitch ball configured to couple with a tongue of a trailer. The ball mount can also include a hitch portion for interfacing with a hitch receiver associated with a vehicle. In addition, the ball mount can include a load measurement device associated with the ball portion to determine a magnitude of a downward force on the hitch ball. The load measurement device can include a reservoir having a fluid and a piston disposed therein, and a pressure sensor in fluid communication with the reservoir. The hitch ball can be configured to exert a force on the piston, thereby affecting a pressure of the fluid in response to the downward force on the hitch ball.

A ball mount for measuring tongue weight of a trailer is disclosed. The ball mount can include a ball portion having a hitch ball configured to couple with a tongue of a trailer. The ball mount can also include a hitch portion for interfacing with a hitch receiver associated with a vehicle. In addition, the ball mount can include a load measurement device associated with the ball portion to determine a magnitude of a downward force on the hitch ball. The load measurement device can include a reservoir having a fluid and a piston disposed therein, and a pressure sensor in fluid communication with the reservoir. The hitch ball can be configured to exert a force on the piston, thereby affecting a pressure of the fluid in response to the downward force on the hitch ball.

Methods, apparatus, systems and articles of manufacture are disclosed to facilitate a single pin load sensor coupled to a hitch receiver, the sensor to measure one or more loads on the hitch receiver. An example apparatus includes a load sensing pin coupled to a hitch receiver of a vehicle, the load sensing pin disposed in a cavity of a crossbar that is to couple the hitch receiver to the vehicle, wherein the load sensing pin is to measure a load transferred from the hitch receiver to the crossbar.

A vehicle includes a sprung mass including a cabin coupled to a chassis, tractive assemblies each including at least one tractive element, springs coupling the tractive elements to the sprung mass, each spring imparting an upward force on the sprung mass, load sensors each configured to provide a signal indicative of the force imparted by one of the springs, and a controller operatively coupled to the load sensors. The controller is configured to determine a weight of the sprung mass using the signals from the load sensors and monitor at least one operational condition of the vehicle. The controller is configured to determine whether or not to disable determination of the weight based on the at least one operational condition.

A hydrodynamic-type hydraulic dynamometer is provided. The hydrodynamic-type hydraulic dynamometer includes a shaft rotatably mounted by a plurality of bearings, a stator fixed around the shaft and having a toroidal chamber therein, a runner rotatably coupled to the shaft and causing a fluid introduced into the toroidal chamber to flow therethrough, an inner ring mounted to extend inwardly from a radially outer side of the toroidal chamber and having a control slit formed therethrough, and a shutter configured to adjust an opening degree of the control slit.

A hydrodynamic-type hydraulic dynamometer is provided. The hydrodynamic-type hydraulic dynamometer includes a shaft rotatably mounted by a plurality of bearings, a stator fixed around the shaft and having a toroidal chamber therein, a runner rotatably coupled to the shaft and causing a fluid introduced into the toroidal chamber to flow therethrough, an inner ring mounted to extend inwardly from a radially outer side of the toroidal chamber and having a control slit formed therethrough, and a shutter configured to adjust an opening degree of the control slit.

Methods, systems, and assemblies for operating an aircraft having a turboprop engine are described. The method comprises obtaining a measured torque of the turboprop engine from a mechanical torque piston measurement system and displaying the measured torque in a cockpit of the aircraft. During operation of the turboprop engine, a torque measurement saturation condition of the torque piston measurement system is monitored to detect when the torque piston measurement system is outside of an operating range. A synthesized torque of the turboprop engine is determined based on one or more actual engine operating parameters of the turboprop engine. In response to detecting that the torque piston measurement system is outside of the operating range, the synthesized torque is displayed in the cockpit of the aircraft.

Disclosed is a sensing device for an electromechanical brake, including: a power part configured to generate an operation force for braking when power is applied thereto; a housing positioned on the power part; a pressurized part positioned on the housing and pressurized by a reaction force caused by driving of the power part; and a sensing part connected to the housing and configured to sense a pressing force by the pressurized part.

A torque sensor is provided. The torque sensor includes a shaft configured to receive an applied torque. The shaft includes a first region and a second region, both regions being magnetoelastic. The first region and the second region generate a first magnetic field and a second magnetic field in response to the applied torque. The shaft also includes a third region disposed between the first region and the second region. The third region generates a substantially negligible magnetic field in response to the applied torque. The torque sensor also includes a first sensor disposed adjacent to the first region, a second sensor disposed adjacent to the second region, and a third sensor disposed adjacent the third region. The first sensor senses the first magnetic field, the second sensor senses the second magnetic field, and the third sensor senses an ambient magnetic field.

A torque sensor is provided. The torque sensor includes a shaft configured to receive an applied torque. The shaft includes a first region and a second region, both regions being magnetoelastic. The first region and the second region generate a first magnetic field and a second magnetic field in response to the applied torque. The shaft also includes a third region disposed between the first region and the second region. The third region generates a substantially negligible magnetic field in response to the applied torque. The torque sensor also includes a first sensor disposed adjacent to the first region, a second sensor disposed adjacent to the second region, and a third sensor disposed adjacent the third region. The first sensor senses the first magnetic field, the second sensor senses the second magnetic field, and the third sensor senses an ambient magnetic field.