What are the reasons for the heavier steering wheel in electric power-assisted cars?

[MacBentley]

Electronic power-assisted car steering wheel becomes heavier due to: lack of lubrication in the steering gear, low tire pressure, battery depletion, or power assist failure. The function of the steering wheel is to convert the force applied by the driver on the edge of the steering wheel into torque, which is then transmitted to the steering shaft. It mainly consists of a skeleton, foam, and installation clips or screw holes corresponding to the driver's airbag (DAB). The steering wheel is generally connected to the steering shaft via splines, and its function is to convert the force applied by the driver on the edge of the steering wheel into torque, which is then transmitted to the steering shaft. When using a steering wheel with a larger diameter, the hand force required by the driver on the steering wheel can be reduced.