Kneeling position for electric medium-duty vehicle

Patent metadata

Field	Value
Publication number	US-11766912-B2
Application number	US-202117454788-A
Country	US
Kind code	B2
Filing date	Nov 12, 2021
Priority date	Dec 14, 2020
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

Methods and systems are provided for adjusting a height of an electric vehicle with an adjustable suspension system. In one example, a method comprises: during a vehicle stop event, adjusting a height of a skateboard frame of an electric vehicle via an adjustable suspension system, based on at least one sensor input indicative of a desired skateboard frame height. In this way, user activities, including loading and unloading, may be facilitated.

First claim

The invention claimed is:

1. A method, comprising:
during a vehicle stop event, adjusting a height of a skateboard frame of an electric vehicle via an adjustable suspension system, based on at least one sensor input indicative of a desired skateboard frame height;
responsive to the skateboard frame at a first height and the desired skateboard frame height being a second height, lowering the skateboard frame to the second height via the adjustable suspension system, the second height less than the first height;
responsive to the skateboard frame at the second height and the desired skateboard frame height being the first height, raising the skateboard frame to the first height via the adjustable suspension system;
responsive to the skateboard frame at the first height and the desired skateboard frame height being a third height, lowering the skateboard frame to the third height via the adjustable suspension system, the third height less than the second height;
responsive to the skateboard frame at the second height and the desired skateboard frame height being the third height, lowering the skateboard frame to the third height via the adjustable suspension system;
responsive to the skateboard frame at the third height and the desired skateboard frame height being the second height, raising the skateboard frame to the second height via the adjustable suspension system; and
responsive to the skateboard frame at the third height and the desired skateboard frame height being the first height, raising the skateboard frame to the first height via the adjustable suspension system.

2. The method of claim 1 , wherein the adjustable suspension system is coupled to the skateboard frame, the adjustable suspension system comprising a front suspension system and a rear suspension system, each of the front suspension system and the rear suspension system including at least one pressurized spring.

3. The method of claim 2 , wherein adjusting the height of the skateboard frame of the electric vehicle via the adjustable suspension system includes adjusting an amount of air in the at least one pressurized spring of the front suspension system and adjusting an amount of air in the at least one pressurized spring of the rear suspension system.

4. The method of claim 1 , wherein the desired skateboard frame height is determined based on one of a user position and a user request.

5. The method of claim 4 , wherein the user position is determined based on the at least one sensor input indicative of the desired skateboard frame height, the at least one sensor input indicative of the desired skateboard frame height including one or more of a proximity sensor, a motion sensor, a strength of a wireless connection to a key fob, a key fob button press, a camera feed, and a voice command.

6. The method of claim 1 , wherein the skateboard frame houses a battery pack, the battery pack providing power to the electric vehicle.

7. The method of claim 1 , wherein the vehicle stop event is determined in response to at least one of a speed of the electric vehicle being zero, a driver-requested stop, and the electric vehicle in a park gear.

8. A method, comprising:
responsive to an expected vehicle stop event,
adjusting a height of a skateboard frame of an electric vehicle via an adjustable suspension system, based on at least one sensor input indicative of a desired skateboard frame height;
wherein adjusting the height of the skateboard frame includes modifying the height upon detecting a request for stopping the vehicle; and
wherein adjusting the height based on the at least one sensor input, includes detecting one or more of a voice command, a user gesture, or a key fob button press.

9. The method of claim 8 , wherein detecting the request for stopping the vehicle includes detecting actuation of a brake pedal.

10. The method of claim 8 , wherein detecting the request for stopping the vehicle includes detecting a decrease in speed of the vehicle.

11. The method of claim 8 , wherein detecting the request for stopping vehicle is activated based on GPS data indicating that the vehicle is approaching a scheduled stop location.

12. The method of claim 8 , wherein adjusting the height of the skateboard frame of the electric vehicle includes adjusting the height when the vehicle is moving at speed within a threshold of zero speed.

13. The method of claim 8 , wherein the at least one sensor input is the key fob button press.

14. The method of claim 1 , wherein the at least one sensor input includes detecting one or more of a voice command, a user gesture, or a key fob button press.

Assignees

• Les Moteurs Nordresa Inc
• Dana Heavy Vehicle Sys Group

Inventors

• Charmeau Mathilde
• Idrici Ali
• Castonguay Sylvain

Classifications

• B60G17/017 Primary

  characterised by their use when the vehicle is stationary, e.g. during loading, engine start-up or switch-off · CPC title

• B60G17/0155

  pneumatic unit · CPC title

• B60G17/033

  characterised by regulating means acting on more than one spring · CPC title

• B60G17/048

  with the regulating means inside the fluid springs (B60G17/044 takes precedence) · CPC title

• B60G17/0525

  Height adjusting or levelling valves · CPC title