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Crosswind stabilization
Crosswind stabilization (CWS) is a relatively new advanced driver-assistance system in cars and trucks that was first featured in a 2009 Mercedes-Benz S-Class. CWS assists drivers in controlling a vehicle during strong wind conditions such as driving over a bridge or when overtaking a semi-truck. CWS uses yaw rate, lateral acceleration, steering angle, and velocity sensors to determine how much assistance to give the driver in a certain scenario whether it be at different speeds or while turning. Using different components throughout the vehicle like brakes, differentials, and suspension, CWS can implement the readings from force sensors to properly assist the driver in a given situation.
Crosswind stabilization was first used by Mercedes-Benz in 2009 in their S class and then later implemented in their Sprinter and Metris vans. Before this technology existed, vans and trucks of similar size had a higher risk of crashing in strong wind conditions as the surface area on the side of the vans and trucks caused the wind to push on the side of the vehicle acting like a sail. This wind can be caused by winds on an open plain, crossing bridges, or a semi-truck or any big vehicle moving at a high speed passing by. This can lead to spinouts and crashes as the driver is forced to grip the wheel tighter which can lead to jerky steering.
Crosswind stabilization works on the basic principle that an undesirable force (crosswind) is acted upon a force in the opposite direction of equal force. When an undesirable wind is picked up by the vehicle's sensors, the hardware in a car's Electronic Stability Program (ESP) can create an unbalanced torque distribution (uneven amount of force on each axle) at the driven wheels which will counteract the wind.
The uneven torque-distribution can be caused by these ways:
Some advanced systems such as Mercedes' Active Body Control (ABC) suspension, can soften or harden the suspension to provide the same results.
In Volkswagen's CWS, they use steering correction rather than using the differential or brakes to control the vehicle. The force sensors in the vehicle tell the ESP system which direction the wind is coming from and the ESP system adjusts the steering accordingly. This leads to no energy wasted and less tire wear as the differential and brakes are not actively changing the forces coming from the drivetrain.
Brakes are used to stop a car. Brakes in some CWS cars are used to help steer the car in the opposite direction of where the wind is coming from. This is called torque vectoring by braking.
A differential in a car is constructed to drive a set of wheels and allows them to rotate at different speeds. If a car doesn't have a differential, this would make turning difficult and cause greater tire wear. In cars with CWS and ESP, the differential has many sensors and electronics to be able to control the differential using software. This allows for precise axle control which allows the car to be more stable.
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Crosswind stabilization AI simulator
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Crosswind stabilization
Crosswind stabilization (CWS) is a relatively new advanced driver-assistance system in cars and trucks that was first featured in a 2009 Mercedes-Benz S-Class. CWS assists drivers in controlling a vehicle during strong wind conditions such as driving over a bridge or when overtaking a semi-truck. CWS uses yaw rate, lateral acceleration, steering angle, and velocity sensors to determine how much assistance to give the driver in a certain scenario whether it be at different speeds or while turning. Using different components throughout the vehicle like brakes, differentials, and suspension, CWS can implement the readings from force sensors to properly assist the driver in a given situation.
Crosswind stabilization was first used by Mercedes-Benz in 2009 in their S class and then later implemented in their Sprinter and Metris vans. Before this technology existed, vans and trucks of similar size had a higher risk of crashing in strong wind conditions as the surface area on the side of the vans and trucks caused the wind to push on the side of the vehicle acting like a sail. This wind can be caused by winds on an open plain, crossing bridges, or a semi-truck or any big vehicle moving at a high speed passing by. This can lead to spinouts and crashes as the driver is forced to grip the wheel tighter which can lead to jerky steering.
Crosswind stabilization works on the basic principle that an undesirable force (crosswind) is acted upon a force in the opposite direction of equal force. When an undesirable wind is picked up by the vehicle's sensors, the hardware in a car's Electronic Stability Program (ESP) can create an unbalanced torque distribution (uneven amount of force on each axle) at the driven wheels which will counteract the wind.
The uneven torque-distribution can be caused by these ways:
Some advanced systems such as Mercedes' Active Body Control (ABC) suspension, can soften or harden the suspension to provide the same results.
In Volkswagen's CWS, they use steering correction rather than using the differential or brakes to control the vehicle. The force sensors in the vehicle tell the ESP system which direction the wind is coming from and the ESP system adjusts the steering accordingly. This leads to no energy wasted and less tire wear as the differential and brakes are not actively changing the forces coming from the drivetrain.
Brakes are used to stop a car. Brakes in some CWS cars are used to help steer the car in the opposite direction of where the wind is coming from. This is called torque vectoring by braking.
A differential in a car is constructed to drive a set of wheels and allows them to rotate at different speeds. If a car doesn't have a differential, this would make turning difficult and cause greater tire wear. In cars with CWS and ESP, the differential has many sensors and electronics to be able to control the differential using software. This allows for precise axle control which allows the car to be more stable.