Control device and control method of dual-motor system and dual-motor system

The invention discloses a control device of a dual-motor system, a control method of the control device and the dual-motor system, and the device is characterized in that a PWM output port of a control chip is respectively connected to a driving end of a first motor and a driving end of a second motor after passing through a driving unit and a driving switching unit; one switching signal output port of the control chip is connected to the driving switching unit; a feedback end of the first motor and a feedback end of the second motor are respectively connected to a rotating speed signal feedback end of the control chip after passing through the sampling switching unit and the sampling unit; and one switching signal output port of the control chip is also connected to the sampling switching unit. According to the scheme, one driving circuit and one sampling circuit are adopted to control the two motors, so that the cost of a hardware circuit can be reduced. 本发明公开了一种双电机系统的控制装置及其控制方法和双电机系统，该装置包括：控制芯片的一个PWM输出端口，经