US 12,643,611 B1Granted

Pure electric vehicle and lifting chassis structure thereof

AssigneeXiamen Dalle New Energy Automobile Co., Ltd.

InventorSide Dai

Life of this patent

Estimating the term…

Loading patent…

Abstract

A lifting chassis structure for a pure electric vehicle includes a chassis body, a movable front suspension, a movable rear suspension, two front lifting devices, and one or more rear lifting devices. A front subframe and a rear subframe are configured to be respectively driven by the two front lifting devices and the one or more rear lifting devices, so as to be lifted up and down respectively relative to the movable front suspension and the movable rear suspension. The movable front suspension includes two shock absorber assemblies connected to a steering assembly. The two front lifting devices are arranged in a splayed pattern. The two front lifting devices respectively correspond to the two shock absorber assemblies, and each of the two front lifting devices is parallel to an adjacent one of the two shock absorber assemblies.

Claims16

Dependent claims

A lifting chassis structure for a pure electric vehicle, comprising:

a chassis body,
a movable front suspension,
a movable rear suspension,
a first front lifting device,
a second front lifting device, and
a first rear lifting device, wherein:
the chassis body comprises a front subframe and a rear subframe,
the first front lifting devices and the second front lifting device are connected to the movable front suspension and the front subframe,
the first rear lifting devices is connected to the movable rear suspension and the rear subframe,
the front subframe and the rear subframe are configured to be respectively driven by the first front lifting device and the first rear lifting device, so as to be lifted up and down respectively relative to the movable front suspension and the movable rear suspension, so that the chassis body is lifted up and down in a height direction,
movements of the first front lifting device and the second front lifting device are synchronous,
the movable front suspension comprises a shock absorber assembly and a steering assembly,
the shock absorber assembly is connected to the steering assembly,
the first front lifting device and the second front lifting device are arranged in a splayed pattern,
the first front lifting device corresponds to the shock absorber assembly,
the first front lifting device is parallel to the shock absorber assembly,
the front subframe comprises a space for placing the movable front suspension,
the movable front suspension comprises a first mounting frame configured to be connected to the steering assembly and a second mounting frame configured to be connected to the first front lifting device and the second front lifting device,
the first mounting frame is connected to the second mounting frame,
the front subframe comprises an impact protection assembly,
when the front subframe is lifted up or down, the impact protection assembly cooperates with the first mounting frame,
the first front lifting device comprises a front electric push rod,
the front subframe comprises an upper mounting seat,
the second mounting frame comprises a lower mounting seat and a shock absorber mounting seat,
two ends of the front electric push rod are respectively pivotally connected to the upper mounting seat and the lower mounting seat,
one end of the front electric push rod that is pivotally connected to the upper mounting seat is a lifting end,
two ends of the shock absorber assembly are respectively pivotally connected to the shock absorber mounting seat and the steering assembly, and
the shock absorber mounting seat is arranged adjacent to the upper mounting seat in the height direction.

25 more elements

A lifting chassis structure for a pure electric vehicle, comprising:

a chassis body,
a movable front suspension,
a movable rear suspension,
a first front lifting device,
a second front lifting device, and
a rear lifting device, wherein:
the chassis body comprises a front subframe and a rear subframe,
the first front lifting device and the second front lifting device are connected to the movable front suspension and the front subframe,
the rear lifting device is connected to the movable rear suspension and the rear subframe,
the front subframe and the rear subframe are configured to be respectively driven by the first front lifting device and the rear lifting device, so as to be lifted up and down respectively relative to the movable front suspension and the movable rear suspension, so that the chassis body is lifted up and down in a height direction,
movements of the first front lifting device and the second front lifting device are synchronous,
the movable front suspension comprises a shock absorber assembly and a steering assembly,
the shock absorber assembly is connected to the steering assembly,
the first front lifting device and the second front lifting device are arranged in a splayed pattern,
the first front lifting device corresponds to the shock absorber assembly,
the first front lifting device is parallel to the shock absorber assembly,
the movable rear suspension comprises a first shock absorber and a second shock absorber,
the first shock absorber is connected to a first motor drive mechanism connected to a first rear wheel,
the second shock absorber is connected to a second motor drive mechanism connected to a second rear wheel,
the rear lifting device comprises a first rear lifting device and a second rear lifting device,
the first rear lifting device corresponds to the first shock absorber,
the second rear lifting device corresponds to the second shock absorber,
the movable rear suspension comprises a lower mounting transverse rod,
the rear subframe comprises an upper mounting transverse rod,
the first rear lifting device comprises a rear electric push rod,
a first end of the rear electric push rod of the first rear lifting device is a lifting end and is pivotally connected to the upper mounting transverse rod, and
a second end of the rear electric push rod of the first rear lifting device is pivotally connected to the lower mounting transverse rod.

24 more elements

A lifting chassis structure for a pure electric vehicle, comprising:

a chassis body,
a movable front suspension,
a movable rear suspension,
a first front lifting device,
a second front lifting device, and
a rear lifting device, wherein:
the chassis body comprises a front subframe and a rear subframe,
the first front lifting device and the second front lifting device are connected to the movable front suspension and the front subframe,
the rear lifting device is connected to the movable rear suspension and the rear subframe,
the front subframe and the rear subframe are configured to be respectively driven by the first front lifting device and the rear lifting device, so as to be lifted up and down respectively relative to the movable front suspension and the movable rear suspension, so that the chassis body is lifted up and down in a height direction,
movements of the first front lifting device and the second front lifting device are synchronous,
the movable front suspension comprises a shock absorber assembly and a steering assembly,
the shock absorber assembly is connected to the steering assembly,
the first front lifting device and the second front lifting device are arranged in a splayed pattern,
the first front lifting device corresponds to the shock absorber assembly,
the first front lifting device is parallel to the shock absorber assembly,
the front subframe comprises a space for placing the movable front suspension,
the movable front suspension comprises a first mounting frame configured to be connected to the steering assembly and a second mounting frame configured to be connected to the first front lifting device and the second front lifting device,
the first mounting frame is connected to the second mounting frame,
the front subframe comprises an impact protection assembly,
the impact protection assembly comprises an upper bumper and a lower bumper, which are spaced apart in the height direction,
when the front subframe is lifted up or down, the impact protection assembly cooperates with the first mounting frame,
when the front subframe is lifted up to a highest position, the lower bumper contacts a bottom of the first mounting frame, and
when the front subframe is lifted down to a lowest position, the upper bumper contacts a top of the first mounting frame.

21 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/317,383Filed 3 Sep 2025
Priority: CN 202520842127.129 Apr 2025
Granted: 2 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

B62D 24/04
Connections between vehicle body and vehicle frame: vehicle body mounted on resilient suspension for movement relative to the vehicle frame
B60G 3/20
With two or more pivoted arms, e.g. parallelogram: all arms being rigid
B60G 11/27
Having fluid springs only, e.g. hydropneumatic springs: wherein the fluid is a gas
B60G 15/067
And fluid damper: characterised by the mounting on the vehicle body or chassis of the spring and damper unit