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Which type of drive is better controlled in winter? In the cold season, front-wheel drive cars can accelerate effectively, but experience inherent problems with insufficient controllability. This makes
How often do we think about which type of ride is preferable in winter? Using the example of four-wheel drive, we have already seen that this is not the safest type of transmission. And how are we doing with monodrive machines? On the one hand, safety mainly depends on the reasonableness of the driver. However, there are also purely technical factors that can make controlling a certain type of transmission more reliable or, conversely, more dangerous.
Rear-wheel drive cars are characterized by the fact that they are naturally set in motion by the rear wheels, which are forced to push a heavy body in front of them. At the same time, the front wheels, on which there is no torque, experience increased rolling resistance. As a result, the car accelerates with the rear wheels and, as it were, slows down with the front wheels. This makes it unstable, that is, prone to slipping.
In addition, this tendency in rear-wheel drive is reinforced by the fact that the driver’s ability to react to rear axle skidding is limited by the maximum angle of rotation of the front wheels. And if the slip angle exceeds this value, it becomes a critical one. This is followed by an uncontrolled reversal. Which is of course very bad. But it is curious that thanks to this phenomenon, high acceleration dynamics become inaccessible for a rear-wheel drive car on slippery surfaces.
And in the event of an error, the car will begin to skid when accelerating, which will inevitably cause a loss of speed. And we know that the lower the speed, the higher the security. Moreover, slippage is just a loss of stability, not controllability. And if it has not reached a critical stage, it is still possible to fix it.
By the way, another nice feature of rear-wheel drive is that even a not very experienced driver reacts correctly to it if problems arise. After all, when we ran on four legs during the process of evolution, it was the back ones that accelerated us, and the front ones determined the direction of movement. So some of our reflexes fit very well with the principles of rear-wheel drive. Not so with front-wheel drive.
Being accelerated by the front wheels and pulling the entire mass of the body through a wire, these cars accelerate smoothly on slippery surfaces. They are impervious to slippage, although it is possible. But at the same time they have a somewhat unnatural manageability. For example, with the same skid, you should not fight with your hands, turning the steering wheel, but with your feet, pressing the gas. Also – due to the peculiarities of the weight distribution – with front wheel drive too much load is placed on the contact patch of the front wheels with the road.
As a result, with good acceleration dynamics, front-wheel drive cars turn very mediocre. That is, they tend to lose control. And this is really bad now. The speed is higher and the handling is worse. That’s why accidents in which the front-wheel drive goes out of control are so common.
Basically, if we compare the degree of safety of front and rear-wheel drive in winter conditions, then the AvtoVzglyad portal gives preference to rear-wheel drive. With less dynamic acceleration, it still remains effectively under control in the event of problems with directional stability and even an inexperienced driver can instinctively act correctly.
How often do we think about which type of ride is preferable in winter? Using the example of four-wheel drive, we have already seen that this is not the safest type of transmission. And how are we doing with monodrive machines? On the one hand, safety mainly depends on the reasonableness of the driver. However, there are also purely technical factors that can make controlling a certain type of transmission more reliable or, conversely, more dangerous.
Rear-wheel drive cars are characterized by the fact that they are naturally set in motion by the rear wheels, which are forced to push a heavy body in front of them. At the same time, the front wheels, on which there is no torque, experience increased rolling resistance. As a result, the car accelerates with the rear wheels and, as it were, slows down with the front wheels. This makes it unstable, that is, prone to slipping.
In addition, this tendency in rear-wheel drive is reinforced by the fact that the driver’s ability to react to rear axle skidding is limited by the maximum angle of rotation of the front wheels. And if the slip angle exceeds this value, it becomes a critical one. This is followed by an uncontrolled reversal. Which is of course very bad. But it is curious that thanks to this phenomenon, high acceleration dynamics become inaccessible for a rear-wheel drive car on slippery surfaces.
And in the event of an error, the car will begin to skid when accelerating, which will inevitably cause a loss of speed. And we know that the lower the speed, the higher the security. Moreover, slippage is just a loss of stability, not controllability. And if it has not reached a critical stage, it is still possible to fix it.
By the way, another nice feature of rear-wheel drive is that even a not very experienced driver reacts correctly to it if problems arise. After all, when we ran on four legs during the process of evolution, it was the back ones that accelerated us, and the front ones determined the direction of movement. So some of our reflexes fit very well with the principles of rear-wheel drive. Not so with front-wheel drive.
Being accelerated by the front wheels and pulling the entire mass of the body through a wire, these cars accelerate smoothly on slippery surfaces. They are impervious to slippage, although it is possible. But at the same time they have a somewhat unnatural manageability. For example, with the same skid, you should not fight with your hands, turning the steering wheel, but with your feet, pressing the gas. Also – due to the peculiarities of the weight distribution – with front wheel drive too much load is placed on the contact patch of the front wheels with the road.
As a result, with good acceleration dynamics, front-wheel drive cars turn very mediocre. That is, they tend to lose control. And now this is really bad. The speed is higher and the handling is worse. That’s why accidents in which the front-wheel drive goes out of control are so common.
Basically, if we compare the degree of safety of front and rear-wheel drive in winter conditions, then the AvtoVzglyad portal gives preference to rear-wheel drive. With less dynamic acceleration, it still remains effectively under control in the event of problems with directional stability and even an inexperienced driver can instinctively act correctly.
Source: Avto Vzglyad
Donald Salinas is an experienced automobile journalist and writer for Div Bracket. He brings his readers the latest news and developments from the world of automobiles, offering a unique and knowledgeable perspective on the latest trends and innovations in the automotive industry.
