Maybe many wheelchair users feel that the speed of electric wheelchairs is too slow, especially some impatient friends, wishing that electric wheelchairs can reach a speed of 30 kilometers per hour, but this is impossible.
Electric wheelchairs are the main means of transportation for the elderly and disabled, and their design speed is strictly limited. Why are electric wheelchairs so slow?
The analysis for you today is as follows: The speed of the electric wheelchair is the speed limit set based on the specific characteristics of the user group and the overall structural characteristics of the electric wheelchair.
1 The national standard stipulates that electric wheelchairs for the elderly and disabled
Speed does not exceed 15 km/h
Because of the physical reasons of the elderly and the disabled, if the speed is too fast in the process of operating the electric wheelchair, they will not be able to respond in an emergency, which will often cause unimaginable consequences.
As we all know, in order to meet the needs of different indoor and outdoor environments, electric wheelchairs must be developed and designed in a comprehensive and coordinated manner with many factors such as body weight, vehicle length, vehicle width, wheelbase, and seat height.
Considering the restrictions on the length, width, and wheelbase of the entire electric wheelchair, if the speed is too fast, there will be safety hazards when driving, and safety hazards such as rollover may occur.
2 The overall structure of the electric wheelchair determines
Its driving speed should not be too fast
To sum up, the slow speed of electric wheelchairs is for the user’s safe driving and safe travel.
Not only is the speed of electric wheelchairs strictly limited, but also in order to prevent safety accidents such as rollovers and backward tilts, electric wheelchairs must be equipped with anti-backward devices during development and production.
In addition, all electric wheelchairs produced by regular manufacturers use differential motors. Careful friends may find that the outer wheels of electric wheelchairs rotate faster than the inner wheels when turning, and even the inner wheels rotate in the opposite direction. This design greatly avoids rollover accidents when driving the electric wheelchair.
Different types of wheelchairs also have very different driving speeds, which can basically be divided into three categories:
the first sort
Indoor electric wheelchairs require the speed to be controlled at 4.5km/h. Generally, this type of wheelchair is small in size and the power of the motor is low, which also determines that the battery life of this type will not be too long. Users mainly complete some daily routines indoors independently.
second category
Outdoor electric wheelchairs require a speed control of 6km/h. This type of wheelchair is generally relatively large in size, with a thicker body structure than the first type, and a larger battery capacity with a longer battery life.
third category
The speed of road-type electric wheelchairs is relatively fast, and the maximum speed is required not to exceed 15km/h. The motors often use high-power, and the tires are also thickened and enlarged. Generally, this type of vehicle is equipped with outdoor lighting and turn indicators to ensure road safety. sex.
The above is the reason for the slow speed of electric wheelchairs. It is recommended that electric wheelchair users, especially elderly friends, should not pursue speed when driving electric wheelchairs. Speed is not important, but safety is the most important thing! !
Post time: Dec-06-2022