Electronic brake caliper type three-speed multi-mode single-motor hybrid power system

Abstract

The invention discloses an electronic brake caliper type three-speed multi-mode motor hybrid power system. The electronic brake caliper type three-speed multi-mode motor hybrid power system is characterized in that an engine, an elastic damper, a main clutch, a motor and a three-speed speed change module of the system are sequentially coaxially mounted, the output shaft of the motor is a hollow shaft, the output shaft of the main clutch penetrates the output shaft of the motor to be connected with the three-speed speed change module, and a first brake is connected with the main clutch; the second brake is connected with the output shaft of the motor; a third brake and a fourth brake are respectively connected with the three-speed speed change module; the three-speed speed change module is further connected with a system output shaft; a controller is respectively electrically connected with a storage battery, the engine, the first brake, the second brake, the third brake and the fourth brake. The electronic brake caliper type three-speed multi-mode motor hybrid power system is simple in structure, fast in gear shifting responds, capable of achieving complete electronic linear control, high in reliability, low in gear shifting energy consumption, and capable of achieving various-speed-ratio drive modes which include a single engine mode, a single motor mode and an engine-motor combined mode.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to an electronic brake caliper type three-speed multi-mode single-motor hybrid power system. Background technique [0002] With the rapid development of plug-in hybrid vehicles, there are mainly BSG hybrid devices, dual-motor coaxial hybrid devices and single-motor AMT hybrid devices on the market. [0003] For the hybrid power device of the BSG scheme, the engine drives a generator through the combined belt through the crankshaft belt to supplement electric energy for the battery pack, and the motor is used to directly drive the vehicle drive axle assembly, and an automatic clutch with a speed ratio of 1 is set between the engine and the motor , the solution exists: 1. The BSG power generation system has a high failure rate, low transmission efficiency, large vibration and noise, and occupies a large volume in the car; 2. The peak torque of the main drive motor is extremely ...

AI Technical Summary

Problems solved by technology

[0003] For the hybrid power device of the BSG scheme, the engine drives a generator through the combined belt through the crankshaft belt to supplement electric energy for the battery pack, and the motor is used to directly drive the vehicle drive axle assembly, and an automatic clutch with a speed ratio of 1 is set between the engine and the motor , the solution exists: 1. The BSG power generation system has a high failure rate, low transmission efficiency, large vibration and noise, and occupies a large volume in the car; 2. The peak torque of the main drive motor is extremely high, the volume and weight moment of inertia is large, and the cost is very high; 3. The engine fuel Technical problems such as low efficiency, narrow high-efficiency range, and poor emissions

[0004] For the hybrid power device with dual-motor coaxial installation scheme, a generator is coaxially installed behind the flywheel of the engine to supplement electric energy for the battery pack. An automatic clutch with a ratio of 1, this solution has problems such as huge system weight, huge moment of inertia, high cost, and low fuel efficiency of the engine

[0005] For the hybrid power device of the single-motor AMT solution, an automatic clutch is installed behind the engine flywheel, and a power generation / drive motor is coaxially installed behind the automatic clutch to supplement electric energy for the battery pack and drive the vehicle. It is installed coaxially after the motor A multi-speed AMT gearbox; this solution has problems such as power interruption, AMT box neutral loss when the motor generates power, weak electric braking energy recovery, low fuel saving rate, high cost, and large energy consumption for shifting.

[0006] The common problems in the above three schemes are that it is difficult to realize the joint multi-mode drive of the engine and the motor, low transmission efficiency, high energy consumption, high cost and other technical problems

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