公开(公告)号：US20200047774A1

公开(公告)日：2020-02-13

申请号：US16535633

申请日：2019-08-08

Applicant: ALSTOM Transport Technologies

Inventor： Sacheen DAUSOA ,  Eric BONNIN

IPC: B61D1/00 ,  B61F5/22

Abstract: A method controls the height of a floor of a car of a vehicle relative to a platform. The car includes a body provided with a distance sensor, at least one bogie and at least one secondary suspension between the bogie and the body. The method includes measuring the distance between the distance sensor and the platform via the distance sensor, calculating the difference between the height of the platform and the height of the floor from the measured distance, and adjusting the height of the secondary suspension based on the difference.

公开(公告)号：US20170355386A1

公开(公告)日：2017-12-14

申请号：US15616999

申请日：2017-06-08

Applicant: ALSTOM Transport Technologies

Inventor： Sacheen DAUSOA ,  Yves LONGUEVILLE

IPC: B61F5/20 ,  B61F5/38

Abstract: Disclosed is a rail vehicle including at least one car and at least one bogie carrying the car. The bogie includes a chassis and a secondary suspension system between the chassis and the car. The secondary suspension system includes a spring assembly mounted between the chassis and the car.The secondary suspension system includes a actuator, provided with a piston extending at least partially between an upper stop secured to the car and a lower stop secured to the chassis, and a supply device of the actuator.The supply device of the actuator is able to supply the actuator such that the distance between the upper and lower stops is kept constant by the actuator.

公开(公告)号：US20180001914A1

公开(公告)日：2018-01-04

申请号：US15636280

申请日：2017-06-28

Applicant: ALSTOM Transport Technologies

Inventor： Sacheen DAUSOA

IPC: B61F5/00 ,  B61F1/14

Abstract: Disclosed is a method for controlling the position relatively to a platform of a floor of a carriage including a bogie including a chassis, a primary suspension, and a secondary suspension, the method including the steps: measuring the height of the secondary suspension; and adjusting the height of the secondary suspension, according to the height of the platform for positioning the floor at the height of the platform. This method includes a step for estimating the height of the top of the chassis, the adjustment of the height of the secondary suspension being achieved according to the estimated height of the top of the chassis.