An apparatus includes a first inverter configured to drive a first motor having a plurality of phases, the first inverter comprising a plurality of inverter legs, each of which is coupled to a corresponding phase of the first motor, a second inverter configured to drive a second motor having a plurality of phases, the second inverter comprising a plurality of inverter legs, each of which is coupled to a corresponding phase of the second motor, and a first current sensor configured to sense currents flowing in the first inverter and the second inverter, wherein the first current sensor is shared by at least by two inverter legs.

An apparatus includes a first inverter configured to drive a first motor having a plurality of phases, the first inverter comprising a plurality of inverter legs, each of which is coupled to a corresponding phase of the first motor, a second inverter configured to drive a second motor having a plurality of phases, the second inverter comprising a plurality of inverter legs, each of which is coupled to a corresponding phase of the second motor, and a first current sensor configured to sense currents flowing in the first inverter and the second inverter, wherein the first current sensor is shared by at least by two inverter legs.

The present invention provides a motor driver and a motor driving system capable of suppressing power consumption when a motor is in a brake state. The motor driver of the present invention includes: a half-bridge power output section, including a high-side transistor and a low-side transistor; a high-side driving circuit, driving the high-side transistor; and a control portion. When switching to a brake mode, the low-side transistor is turned on and the control portion turns off the high-side driving circuit.

An ECU includes a plurality of motor driving circuits for driving at least one motor, a plurality of computers and a plurality of clock circuits. A first computer, which is at a synchronization signal transmission-side, transmits a synchronization signal to a second computer, which is at a synchronization signal reception-side. The first computer and the second computer execute a plurality of specific periodic processes, which are processes executed at cycle periods (for example, 200 μs, 400 μs) of different natural number multiples of a cycle period (for example, 200 μs) of the synchronization signal and need be synchronized. Each timing of the plurality of specific periodic processes is determined based on one synchronization signal.

An ECU includes a plurality of motor driving circuits for driving at least one motor, a plurality of computers and a plurality of clock circuits. A first computer, which is at a synchronization signal transmission-side, transmits a synchronization signal to a second computer, which is at a synchronization signal reception-side. The first computer and the second computer execute a plurality of specific periodic processes, which are processes executed at cycle periods (for example, 200 μs, 400 μs) of different natural number multiples of a cycle period (for example, 200 μs) of the synchronization signal and need be synchronized. Each timing of the plurality of specific periodic processes is determined based on one synchronization signal.

The present application relates to the technical field of motor control, and provides a motor control method and system. The motor control method includes: each driving chip receives state information fed back by a sensor corresponding to the driving chip; when the driving chip receives the state information, a processor receives the state information; the driving chip processes the state information to obtain a first control signal, and the processor processes the state information to obtain a second control signal; and at least two of a plurality of driving chips drive, according to the first control signals and the second control signals corresponding to the driving chips, motors corresponding to the driving chips for linkage.

The present application relates to the technical field of motor control, and provides a motor control method and system. The motor control method includes: each driving chip receives state information fed back by a sensor corresponding to the driving chip; when the driving chip receives the state information, a processor receives the state information; the driving chip processes the state information to obtain a first control signal, and the processor processes the state information to obtain a second control signal; and at least two of a plurality of driving chips drive, according to the first control signals and the second control signals corresponding to the driving chips, motors corresponding to the driving chips for linkage.

An apparatus includes a first inverter configured to drive a first motor having a plurality of phases, the first inverter comprising a plurality of inverter legs, each of which is coupled to a corresponding phase of the first motor, a second inverter configured to drive a second motor having a plurality of phases, the second inverter comprising a plurality of inverter legs, each of which is coupled to a corresponding phase of the second motor, and a first current sensor configured to sense currents flowing in the first inverter and the second inverter, wherein the first current sensor is shared by at least by two inverter legs.

An apparatus includes a first inverter configured to drive a first motor having a plurality of phases, the first inverter comprising a plurality of inverter legs, each of which is coupled to a corresponding phase of the first motor, a second inverter configured to drive a second motor having a plurality of phases, the second inverter comprising a plurality of inverter legs, each of which is coupled to a corresponding phase of the second motor, and a first current sensor configured to sense currents flowing in the first inverter and the second inverter, wherein the first current sensor is shared by at least by two inverter legs.

A drive mechanism includes a mount block extending along an axis and a plurality of electric motors supported by the mount block. The electric motors are arranged in series along the axis to define an initial electric motor, one or more intermediate electric motors, and a final electric motor. The drive mechanism also includes a gear mounted to each of the electric motors, and an output member driven by the gear mounted to the final electric motor to receive the combined rotational torque from the gears of the series of electric motors.