Technology overview
Assisting braking to prevent collision with a wall while parking or during other reversing or advancing at low speed between 2 and 10 km/h
Low Speed Brake Function uses four front and four rear sonar sensors to detect walls, glass barriers, or other obstacles in close proximity to (within a few meters of) the vehicle while parking or during other reversing or advancing at low speed. If the vehicle is about to hit an obstacle, the function assists application of the brake by the driver
With Low Speed Brake Function, Honda supports safe driving both in reverse and while moving forward.
How it works
STEP1
Sonar sensors detect walls or other obstacles while parking or during other reversing or advancing at low speed. Use of ultrasound allows detection of glass barriers, too.
STEP2
If there is a risk of a collision, the system assists application of the brake by the driver and alerts the driver with warning sounds and the display. The brake releases once the stopped state is maintained.
Obstacle detection
Low Speed Brake Function uses two sonar sensors in combination to perform triangulation to determine the position of obstacles both in terms of distance and as coordinates. The system activates the brake as required, distinguishing between structures that can be passed through and structures that cannot be passed through.
Two sensors form two arcs, much like a compass, and coordinates are determined by finding the point at which they intersect.
Commitment of Honda
Helping provide peace of mind when parking through activation even when moving forward
Even when reversing in to a parking space, there are sometimes walls forward of the vehicle. At convenience stores, vehicles are often parked front first. Honda takes this into account, making a point of supporting both reverse and forward movement.
Reverse parking scenario with wall in front
Consideration of diagonal obstacles
Ultrasonic waves from the sonar sensors are emitted from the vehicle as concentric arcs. Say there was a diagonal obstacle behind a reversing vehicle. If the system only reacted to the area directly behind the vehicle, with the activation range limited to the width of the vehicle’s travel path, it would activate right in front of the wall, potentially without enough time to stop. Low Speed Brake Function takes diagonal obstacles into account, for example by timing activation of the function according to characteristics of the object’s form.
*Some obstacle forms may not be detected.
When there is a diagonal obstacle behind the vehicle
If the activation range is limited to the travel path, the obstacle is detected too late
Activation timing determined according to characteristics of the object’s form
[Video] Functions image
The individual functions of the driver-assistive system have limited capabilities (e.g. recognition capability and control capability). Please do not overestimate the capabilities of any function and drive safely while paying constant attention to the vehicle’s surroundings. A system may not work or perform adequately depending on road conditions, weather conditions and vehicle conditions.
Function is not installed in some areas.
Depending on the model and timing of the market launch of the model, descriptions provided on this page and the actual functions available on customers’ vehicles may be different. For the functions available for each vehicle, please check the owners’ manual of the respective vehicle.
