Integrated testing platform and method for power battery, electric drive system and electronic control system of an electric vehicle based on synchronized control of front and rear motors

An integrated testing platform for power battery, electric drive system and electronic control system of an electric vehicle based on synchronized control of front and rear motors, comprising:

• a first testing unit;
• a second testing unit;
• a third testing unit;
• a fourth testing unit;
• and
• a wheelbase adjustment device;
• wherein the first testing unit is configured to test a first front wheel of the electric vehicle;
• the second testing unit is configured to test a second front wheel of the electric vehicle;
• the third testing unit is configured to test a first rear wheel of the electric vehicle;
• and the fourth testing unit is configured to test a second rear wheel of the electric vehicle;
• the first testing unit is structurally identical to the second testing unit;
• the third testing unit is structurally identical to the fourth testing unit;
• the first testing unit, the second testing unit, the third testing unit and the fourth testing unit are provided at the same horizontal foundation plane;
• a transverse centerline of the first testing unit coincides with a transverse centerline of the second testing unit;
• a transverse centerline of the third testing unit coincides with a transverse centerline of the fourth testing unit;
• the wheelbase adjustment device is provided between the third testing unit and the fourth testing unit;
• and a transverse centerline of the wheelbase adjustment device coincides with the transverse centerline of the third testing unit and the transverse centerline of the fourth testing unit;
• each of the first testing unit and the second testing unit comprises a first driving roller mechanism, a first driven roller mechanism, a first lifting device and a first motor;
• the first driving roller mechanism and the first driven roller mechanism are configured to keep synchronized in motion state;
• the first driving roller mechanism is connected to the first motor, and is configured to be driven by the first motor;
• the first lifting device is configured to lift and lower the first driving roller mechanism and the first driven roller mechanism;
• the first testing unit and the second testing unit are each provided on a base of the first motor;
• the base of the first motor is provided on a rail assembly;
• and the rail assembly comprises a lateral rail and a longitudinal rail;
• each of the third testing unit and the fourth testing unit comprises a second driving roller mechanism, a second driven roller mechanism, a second lifting device, a blocking device, a locking mechanism and a second motor;
• the second driving roller mechanism and the second driven roller mechanism are configured to keep synchronized in motion state;
• the second driving roller mechanism is connected to the second motor, and is configured to be driven by the second motor;
• the second lifting device is configured to lift and lower the second driving roller mechanism and the second driven roller mechanism;
• the blocking device is configured to prevent the first rear wheel and the second rear wheel from exiting a testing position during a testing process;
• the locking mechanism is configured to lock the second driving roller mechanism and the second driven roller mechanism;
• the locking mechanism is connected to the second lifting device through a first linkage mechanism;
• the third testing unit and the fourth testing unit are each provided on a frame assembly;
• a bottom of the frame assembly is provided on a rear rail;
• and the rear rail is linked with the rail assembly;
• the wheelbase adjustment device is configured to adjust a distance between the base of the first motor and the frame assembly;
• the first motor and the second motor are configured to be synchronously controlled by a controller during the testing process;
• the first driving roller mechanism is structurally identical to the first driven roller mechanism;
• a first end of the first driving roller mechanism is connected to a first end of the first driven roller mechanism through a first belt, such that the first driving roller mechanism and the first driven roller mechanism are synchronized in the motion state;
• a second end of the first driving roller mechanism is provided with a first gear;
• a side of the first motor is provided with a second gear;
• the first gear is connected to the second gear through a second belt, such that the first driving roller mechanism is driven by the first motor;
• the first lifting device is provided at a center between the first driving roller mechanism and the first driven roller mechanism;
• a lower end of the first lifting device is connected to a first air pump through a second linkage mechanism;
• the first air pump is fixed on the base of the first motor;
• the first air pump is parallel to an edge of the base of the first motor;
• the lateral rail is perpendicular to the longitudinal rail;
• and the longitudinal rail is provided below the lateral rail;
• and
• the first driving roller mechanism has a symmetrical structure, and comprises a first cylindrical roller, a bearing, a first bearing seat and the first gear;
• the bearing is provided along a central axis of the first cylindrical roller;
• a side of the bearing is configured to fit a side of the first cylindrical roller;
• a side of the first bearing seat is configured to fit a side of the first gear;
• centers of the first bearing seat and the first gear are located at the central axis of the first cylindrical roller;
• and two opposite sides of the first cylindrical roller are each provided with the bearing, the first bearing seat and the first gear through the same mounting manner.