The invention provides a double-cross-arm suspended rear auxiliary frame of a rear-drive electric vehicle, which comprises a front cross beam, a left upper longitudinal beam, a left lower longitudinal beam, a right upper longitudinal beam, a right lower longitudinal beam, a rear upper cross beam and a rear lower cross beam, the left end of the front cross beam is connected with the front end of the left lower longitudinal beam, and the right end of the front cross beam is connected with the front end of the right lower longitudinal beam; the rear end of the left lower longitudinal beam is connected with the left end of the rear lower cross beam, the rear end of the right lower longitudinal beam is connected with the right end of the rear lower cross beam, the left upper longitudinal beam and the right upper longitudinal beam are both L-shaped, the front end of the left upper longitudinal beam is connected with the front end of the left lower longitudinal beam, and the rear end of the left upper longitudinal beam is connected with the left end of the rear upper cross beam. The system has the beneficial effects that the arrangement of the chassis double-wishbone suspension system is met, the structure is simplified, the cost is reduced, the requirements of a whole vehicle on rigidity, strength, modality and fatigue life of a rear auxiliary frame are met, and the lightweight decomposition target of the whole vehicle is met.
本发明提供了一种双横臂悬挂的后驱电动车后副车架,包括前横梁、左上纵梁、左下纵梁、右上纵梁、右下纵梁、后上横梁和后下横梁,其中,所述前横梁的左端与所述左下纵梁的前端连接,所述前横梁的右端与所述右下纵梁的前端连接,所述左下纵梁的后端与所述后下横梁的左端连接,所述右下纵梁的后端与所述后下横梁的右端连接,所述左上纵梁、右上纵梁均为L型,所述左上纵梁的前端与所述左下纵梁的前端连接,所述左上纵梁的后端与所述后上横梁的左端连接。本发明的有益效果是:满足底盘双横臂悬架系统布置,简化了结构,降低了成本,满足整车对后副车架刚度、强度、模态、疲劳寿命要求,满足整车轻量化分解目标。
Double-cross-arm suspended rear auxiliary frame of rear-drive electric vehicle
一种双横臂悬挂的后驱电动车后副车架
2021-04-16
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |