An internal combustion engine-based system including an engine, a shutdown circuit coupled to the engine to shut down the engine, a controller in communication with the shutdown circuit, and a carbon monoxide (CO) sensor in communication with the controller. The controller communicates with the shutdown circuit to shut down the engine at a predetermined CO threshold concentration when the CO sensor provides the controller with signals that are representative of a CO level proximate the engine that indicate a trend of building CO levels over a set time interval.

The present disclosure discloses an electric assembly and a vehicle having the same. The electric assembly includes: a box assembly, where an mounting plate is disposed in the box assembly, the mounting plate divides a space within the box assembly into a motor holding cavity and a transmission holding cavity that are arranged along an axial direction of a motor shaft, and the mounting plate has a shaft via-hole making the motor holding cavity and the transmission holding cavity be in communication with each other; a motor, disposed in the motor holding cavity; and a transmission, disposed in the transmission holding cavity, where the motor is power-coupled to the transmission.

A vehicle drive device includes: a rotary electric machine; a drive transmission mechanism provided in a power transmission path connecting a rotor shaft of the rotary electric machine and a wheel; a first hydraulic pump driven by a driving force transmitted through the power transmission path; a second hydraulic pump driven by a driving force source independent of the power transmission path; a first oil passage that supplies oil discharged from the first hydraulic pump to a rotor bearing that supports the rotor shaft such that the rotor shaft is rotatable; and a second oil passage that supplies oil discharged from the second hydraulic pump to an inner peripheral surface of the rotor shaft.

A passive magnetic bearing employs eddy currents in a copper core between neodymium annular magnets to support the copper core and an associated rotating shaft. The copper core has an annular flange that is coaxial with a hollow cylinder. The hollow cylinder supports a rotating shaft. An annular iron core is coaxial with and surrounds the annular flange. Annular neodymium magnets surround the upper and lower portions of the hollow cylinder. In some embodiments a touch-down bearing is made up of an upper and a lower bearing race that are spaced away from the upper surface and lower surface of the annular flange. The core rotates over the bearing race(s) until sufficient magnetic flux is generated to support the copper core and hence the shaft. Once spinning, a magnetic field is generated in the copper core.

A reflector array includes a support structure, a motor, a shaft operatively coupled to the motor, a free plate, and a drive plate. The free plate includes a free plate first side and a free plate second side axially opposed to the free plate first side. The free plate further may include a latching mechanism disposed on the free plate second side and a drive plate. The drive plate is rotatably coupled to the shaft. The drive plate includes a drive plate first side and a drive plate second side axially opposed to the drive plate first side. The drive plate further includes a drive plate finger coupled to the drive plate second side. The drive plate finger is configured to contact the latching mechanism in response to rotation of the driver plate. The drive plate finger is further configured to couple the drive plate to the free plate.

A method for controlling operation of a rotary electric machine includes receiving, via a bandwidth-partitioning harmonic compensation regulator (HCR) of a controller, a commanded torque and rotational speed of the electric machine, and calculating, via the HCR in response to enabling conditions, a dq harmonic compensation current and a dq harmonic compensation voltage for one or more predetermined harmonic orders using the commanded torque and the rotational speed. The harmonic compensation current and voltage cancel torque ripple and current ripple in the one or more predetermined harmonic orders. The method may include injecting an acoustic tone at a predetermined harmonic order. The method additionally includes adding the dq harmonic compensation current and voltage to a dq current and voltage command, respectively, to generate adjusted dq current and voltage commands. The electric machine is then controlled using the adjusted dq current and voltage commands.

A shaft (12) for cooling an electric machine (10) includes: an outer sub-shaft (32), which is designed for being rotationally fixed to a rotor (14) of the electric machine; an inner sub-shaft (30), which is rotationally fixed to the outer sub-shaft and is designed as an output shaft of the electric machine; an inflow (36) arranged in the radial direction between the outer sub-shaft and the inner sub-shaft, in order to supply cooling fluid (28) to the shaft; and an outflow (42) arranged in the radial direction between the outer sub-shaft and the inner sub-shaft, in order to discharge cooling fluid supplied to the shaft. The outer sub-shaft encloses a fluid chamber (40), which is arranged in the axial direction between the inflow and the outflow. A direction of flow of cooling fluid in the fluid chamber is established by a delivery direction of a fluid pump (24).

A brushless motor includes a stator assembly and a rotor assembly one coaxially disposed around the other. The rotor assembly includes a spindle and a rotor yoke coaxially disposed around the spindle. At least two magnet receiving grooves for receiving magnets are formed in an inner wall of the rotor yoke in a circumferential direction, the magnets are inserted into the magnet receiving grooves, and a magnetism isolating gap is formed between the at least two magnet receiving grooves. Through the external-rotor design, the size and weight of the motor are effectively reduced, the working efficiency of the motor is effectively improved under the same power, the life of a lithium battery is further prolonged, the energy conversion requirement is met, and user experience is improved.

A hybrid module includes a first, motor-side pre-assembly group and a second, transmission-side pre-assembly group. A separating clutch is arranged between the motor-side pre-assembly group and the transmission-side pre-assembly group, via which the pre-assembly groups can be connected in a torque-transmitting manner.

A dual drive unit may include two motors, two power transfer mechanisms, and two output shafts. The output shafts are co-linear. The dual drive unit may include two single drive units, which may be similar to each other, coupled together at a joint, which may optionally include a clutch. A drive unit may be modular, and various components may be combined to provide power to an output shaft. For example, a drive unit may include a differential at a first interface, which may be removable, and two drive units may be coupled together at the first interface. A drive unit may have a Z configuration, wherein a motor on a first side of a vehicle powers a wheel on an opposite side of the vehicle.