Hybrid four-wheel drive chassis structure

Abstract

The invention discloses a four-wheel drive chassis structure for a hybrid electric vehicle. The four-wheel drive chassis structure for the hybrid electric vehicle is characterized in that front wheels (14) are arranged at the left side and the right side of a front auxiliary frame (12) through a front suspension (13); an engine (1) and a front gearbox (15) are arranged inside the front auxiliary frame (12); the output end of the front gearbox (15) is connected with the front wheels (14) through a front half shaft; rear wheels (18) are mounted at the left side and the right side of a back auxiliary frame (16) through a back suspension (17); a driving motor (19) and a rear gearbox (20) are arranged inside a frame of the back auxiliary frame (16); a battery pack (21) and an oil tank (22) are arranged between the front auxiliary frame (12) and the back auxiliary frame (16). The four-wheel drive chassis structure for the hybrid electric vehicle has the advantages of reasonable layout, easiness of assembling, benefits in maintenance, small vibration and noise, low production cost and good riding comfort; meanwhile, the optimal driving manner in different working conditions can be realized; the requirements of dynamic properties can be met; the fuel economy can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and in particular relates to a four-wheel drive chassis structure of a hybrid electric vehicle. Background technique [0002] In today's world, human beings are facing two major challenges: energy scarcity and environmental degradation. Traditional automobiles are increasingly plagued by the oil crisis. Electric vehicles have become the mainstream of industry development. Among them, hybrid electric vehicles are excellent in balancing economy and power, and have become the main development content of electric vehicles. [0003] Existing hybrid vehicles usually arrange engine and drive motor in the engine compartment at the front of the car body, and the power is transmitted to the rear wheels through the center differential and the intermediate transmission shaft. The deficiencies in the above layout structure are: [0004] 1) The transmission line of power from front to back is long, and t...

AI Technical Summary

Problems solved by technology

[0004] 1) The transmission line of power from front to back is long, and the transmission vibration and noise during the vehicle's driving process are relatively large, which will affect the ride comfort

[0005] 2) The central differential is large in size, which will reduce the space of the corresponding part in the car, and will also affect the comfort of the ride

[0006] 3) The central differential and the intermediate transmission shaft occupy the middle space under the lower car body, and the battery pack equipped with the drive motor can only be arranged in the trunk. On the one hand, the ventilation and heat dissipation are not good, and assembly and replacement are inconvenient; on the other hand, The battery pack takes up space in the trunk, which reduces the volume of the trunk; at the same time, when a rear-end collision occurs, the battery pack in the trunk is prone to fire or explosion, which is less safe

[0007] 4) There are many parts in the entire power transmission assembly. Not only is the assembly operation cumbersome, the assembly is difficult, the efficiency is low, it is not conducive to maintenance, and the production cost is high, which will affect the wide-scale promotion of hybrid vehicles.

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