27-07-2012, 04:21 PM
Vehicle Assist Systems
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Lane Assist
During long journeys on monotonous roads, a driver’s concentration can often lapse. It’s not surprising that a lot of accidents are caused by vehicles that deviate from their lane. The “Lane Assist” lane keeping assistance system can help avoid this type of accident: The steering system takes correcting action to support the driver if the vehicle starts to leave its lane.
How it Works:
When the system is activated, “Lane Assist” automatically becomes active from 65 km/h upwards. A camera built into the inside rear view mirror detects the lane markings and evaluates the position of the vehicle. If the car tends to drift off lane, the lane keeping assistance system takes correcting action. If the maximum action available is not enough to stay in lane or the speed falls below 60 km/h, “Lane Assist” warns the driver with a vibration of the steering wheel. Then it is up to the driver to take correcting action.
In Practice:
If “Lane Assist” is activated, a yellow control symbol shaped like a road lights up. As soon as the camera has analyzed the road markings, this symbol turns green. Now the system is activated. If the vehicle then leaves the ideal line, “Lane Assist” takes soft and continuous correcting action. If the driver takes his or her hands completely off the steering wheel, the system makes a sound and displays a message making a so-called takeover request. If the driver does not put his or her hands on the wheel for a longer period of time, the function automatically turns itself off. If required, “Lane Assist” can be counteracted by the driver by softly steering against it. The driving assistant does not react if the vehicle moves out of its lane after the driver has indicated. This technology is made possible by the combination of a “steerable” electro-mechanical power steering.
ACC automatic distance control
The ACC automatic distance control is the familiar cruise control system by adding a radar sensor. When activated, the system maintains a preset distance from the vehicle ahead by automatically adjusting the car’s speed accordingly. This makes the ACC automatic distance control a major strain-relieving, comfort-enhancing driver aid.
The ACC automatic distance control is based around a radar sensor with a range of up to 200 metres and a beam angle of 12 degrees. The radar sensor and control unit are combined into a single unit which is located in the radiator grille.
How it works:
Using the signals from the radar sensor, the control unit computes not just the distance to the vehicle ahead but also the car’s speed relative to it, as well as its lateral offset on multi-lane carriageways. If there are several vehicles within the
sensor’s field of coverage at the same time, this information is used to select which of the vehicles the system should track. The radar sensor is not capable of detecting stationary obstructions, such as the end of a tailback.
If approaching a slower vehicle ahead or another vehicle cuts in front, the automatic distance control
slows down the car by initiating corrective controls in the engine management and, if necessary, in the braking system too. If the required rate of deceleration exceeds 30 percent of the vehicle’s maximum stopping power, the driver will be prompted by visual and audible warning signals to apply the brakes manually
Radar-based ACC often feature a Precrash system, which warns the driver and/or provides brake support if there is a high risk of a collision. Also in certain cars it is incorporated with a lane maintaining system which provides Power steering assist to reduce steering input burden in corners when the cruise control system is activated.
GPS-aided ACC: the GPS navigation system provides guidance input to the ACC. On the motorway, the car in the front is slowing down, but with turn signal on and it is actually heading for a highway off-ramp. A conventional ACC would sense the car in front was decelerating and it would simply apply brakes accordingly. But with GPS-guided ACC takes into account the approaching highway exit and it simultaneously receives images from a camera attached
Park Assist
With “Park Assist” you can get into tight spaces almost automatically. When looking for a space, the ultrasonic sensors work out whether the parking space in question is a suitable one. They compare the area available with the length of the vehicle. From an optimum starting position, your vehicle is automatically guided into the gap in one move. All you have to do is to press the accelerator and the brake.
How it works:
Newer versions of the system allow parallel or reverse parking. When parallel parking with the system, drivers first pull up alongside the parking space. They move forward until the vehicle's rear bumper passes the rear wheel of the car parked in front of the open space. Then, shifting to reverse automatically activates the backup camera system, and the car's rear view appears on dash navigation/camera display.[The driver's selection of the parallel park guidance button on the navigation/camera touchscreen causes a grid to appear (with green or red lines, a flag symbol representing the corner of the parking spot, and adjustment arrows)The driver is responsible for checking to see if the representative box on the screen correctly identifies the parking space; if the space is large enough to park, the box will be green in color; if the box is incorrectly placed, or lined in red, using the arrow buttons moves the box until it turns green.Once the parking space is correctly identified, the driver presses OK and take his/her hands off the steering wheel, while keeping the foot on the brake pedal. When the driver slowly releases the brake, while keeping the foot on the brake pedal, the car will then begin to back up and steer itself into the parking space.
The reverse parking procedure is virtually identical to the parallel parking procedure. The driver approaches the parking space, moving forward and turning, positioning the car in place for backing into the reverse parking spot. The vehicle rear has to be facing the reverse parking spot, allowing the backup camera to 'see' the parking area. Shifting to reverse automatically activates the backup camera system, and the driver selects the reverse park guidance button on the navigation/camera touchscreen (the grid appears with green or red lines, a flag symbol representing the corner of the parking spot, and adjustment arrows; reverse parking adds rotation selection).After checking the parking space and engaging the reverse park procedure, the same exact parking process occurs as the car reverse parks into the spot.
When the car's computer voice issues the statement The system is set up so that at any time the steering wheel is touched or the brake firmly pressed, the automatic parking will disengage. The vehicle also cannot exceed a set speed, or the system will "The guidance is finished", the system has finished parking the car. The driver can then shift to drive and make adjustments in the space if necessary.
Rear Assist
It is just like having eyes at the rear end of the vehicle. Rear Assist enables you to spot any obstacles behind the vehicle quickly and easily, courtesy of the camera built into the tail.
How it works:
Rear Assist is activated as soon as you engage reverse gear. Colored lines on the display indicate whether the way is clear: green lines show the area behind the vehicle, yellow lines the path corresponding to the angle the steering wheel is turned to. You then simply align the red line with the kerb you wish to stop in front of.
[attachment=29318]
Lane Assist
During long journeys on monotonous roads, a driver’s concentration can often lapse. It’s not surprising that a lot of accidents are caused by vehicles that deviate from their lane. The “Lane Assist” lane keeping assistance system can help avoid this type of accident: The steering system takes correcting action to support the driver if the vehicle starts to leave its lane.
How it Works:
When the system is activated, “Lane Assist” automatically becomes active from 65 km/h upwards. A camera built into the inside rear view mirror detects the lane markings and evaluates the position of the vehicle. If the car tends to drift off lane, the lane keeping assistance system takes correcting action. If the maximum action available is not enough to stay in lane or the speed falls below 60 km/h, “Lane Assist” warns the driver with a vibration of the steering wheel. Then it is up to the driver to take correcting action.
In Practice:
If “Lane Assist” is activated, a yellow control symbol shaped like a road lights up. As soon as the camera has analyzed the road markings, this symbol turns green. Now the system is activated. If the vehicle then leaves the ideal line, “Lane Assist” takes soft and continuous correcting action. If the driver takes his or her hands completely off the steering wheel, the system makes a sound and displays a message making a so-called takeover request. If the driver does not put his or her hands on the wheel for a longer period of time, the function automatically turns itself off. If required, “Lane Assist” can be counteracted by the driver by softly steering against it. The driving assistant does not react if the vehicle moves out of its lane after the driver has indicated. This technology is made possible by the combination of a “steerable” electro-mechanical power steering.
ACC automatic distance control
The ACC automatic distance control is the familiar cruise control system by adding a radar sensor. When activated, the system maintains a preset distance from the vehicle ahead by automatically adjusting the car’s speed accordingly. This makes the ACC automatic distance control a major strain-relieving, comfort-enhancing driver aid.
The ACC automatic distance control is based around a radar sensor with a range of up to 200 metres and a beam angle of 12 degrees. The radar sensor and control unit are combined into a single unit which is located in the radiator grille.
How it works:
Using the signals from the radar sensor, the control unit computes not just the distance to the vehicle ahead but also the car’s speed relative to it, as well as its lateral offset on multi-lane carriageways. If there are several vehicles within the
sensor’s field of coverage at the same time, this information is used to select which of the vehicles the system should track. The radar sensor is not capable of detecting stationary obstructions, such as the end of a tailback.
If approaching a slower vehicle ahead or another vehicle cuts in front, the automatic distance control
slows down the car by initiating corrective controls in the engine management and, if necessary, in the braking system too. If the required rate of deceleration exceeds 30 percent of the vehicle’s maximum stopping power, the driver will be prompted by visual and audible warning signals to apply the brakes manually
Radar-based ACC often feature a Precrash system, which warns the driver and/or provides brake support if there is a high risk of a collision. Also in certain cars it is incorporated with a lane maintaining system which provides Power steering assist to reduce steering input burden in corners when the cruise control system is activated.
GPS-aided ACC: the GPS navigation system provides guidance input to the ACC. On the motorway, the car in the front is slowing down, but with turn signal on and it is actually heading for a highway off-ramp. A conventional ACC would sense the car in front was decelerating and it would simply apply brakes accordingly. But with GPS-guided ACC takes into account the approaching highway exit and it simultaneously receives images from a camera attached
Park Assist
With “Park Assist” you can get into tight spaces almost automatically. When looking for a space, the ultrasonic sensors work out whether the parking space in question is a suitable one. They compare the area available with the length of the vehicle. From an optimum starting position, your vehicle is automatically guided into the gap in one move. All you have to do is to press the accelerator and the brake.
How it works:
Newer versions of the system allow parallel or reverse parking. When parallel parking with the system, drivers first pull up alongside the parking space. They move forward until the vehicle's rear bumper passes the rear wheel of the car parked in front of the open space. Then, shifting to reverse automatically activates the backup camera system, and the car's rear view appears on dash navigation/camera display.[The driver's selection of the parallel park guidance button on the navigation/camera touchscreen causes a grid to appear (with green or red lines, a flag symbol representing the corner of the parking spot, and adjustment arrows)The driver is responsible for checking to see if the representative box on the screen correctly identifies the parking space; if the space is large enough to park, the box will be green in color; if the box is incorrectly placed, or lined in red, using the arrow buttons moves the box until it turns green.Once the parking space is correctly identified, the driver presses OK and take his/her hands off the steering wheel, while keeping the foot on the brake pedal. When the driver slowly releases the brake, while keeping the foot on the brake pedal, the car will then begin to back up and steer itself into the parking space.
The reverse parking procedure is virtually identical to the parallel parking procedure. The driver approaches the parking space, moving forward and turning, positioning the car in place for backing into the reverse parking spot. The vehicle rear has to be facing the reverse parking spot, allowing the backup camera to 'see' the parking area. Shifting to reverse automatically activates the backup camera system, and the driver selects the reverse park guidance button on the navigation/camera touchscreen (the grid appears with green or red lines, a flag symbol representing the corner of the parking spot, and adjustment arrows; reverse parking adds rotation selection).After checking the parking space and engaging the reverse park procedure, the same exact parking process occurs as the car reverse parks into the spot.
When the car's computer voice issues the statement The system is set up so that at any time the steering wheel is touched or the brake firmly pressed, the automatic parking will disengage. The vehicle also cannot exceed a set speed, or the system will "The guidance is finished", the system has finished parking the car. The driver can then shift to drive and make adjustments in the space if necessary.
Rear Assist
It is just like having eyes at the rear end of the vehicle. Rear Assist enables you to spot any obstacles behind the vehicle quickly and easily, courtesy of the camera built into the tail.
How it works:
Rear Assist is activated as soon as you engage reverse gear. Colored lines on the display indicate whether the way is clear: green lines show the area behind the vehicle, yellow lines the path corresponding to the angle the steering wheel is turned to. You then simply align the red line with the kerb you wish to stop in front of.