Car backing assisting system
An auxiliary system, ultrasonic technology, applied in the field of trucks and ultrasonic-based reversing auxiliary systems, can solve the problems of high cost and insufficient consideration of existing technologies, and achieve the effect of reducing blind spots
Inactive Publication Date: 2018-08-03
清华大学苏州汽车研究院(吴江) +1
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Problems solved by technology
Need to cooperate with radar and camera, high cost
There are the following problems in the existing technology of assisted reversing through radar: the combination, installation position and installation method of sensors are the main factors affecting the comprehensiveness of information detection, which have not been fully considered in the existing technology
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[0019] The preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0020] Such as figure 1 As shown, the ultrasonic-based reversing assistance system of the present invention includes at least two direct-type ultrasonic sensor modules and sound alarm devices connected to the ECU module. The direct-type ultrasonic sensor module includes two ultrasonic detection heads arranged in tandem. The angle between the first ultrasonic detection head and the ground is 90°, the angle between the second ultrasonic detection head and the ground is 45°, and the sound alarm device is controlled by the ECU module according to the obstacle distance. The sound alarm device can be a buzzer distance alarm module.
[0021] modules such as figure 1 As shown in the figure, control the ultrasonic emission and reception of the ultrasonic sensor module, convert the echo signal received by the ultrasonic sensor module into obstacle ...
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The invention discloses a car backing assisting system which includes at least two direct type ultrasonic sensor modules and a sound alarm device, wherein the at least two direct type ultrasonic sensor modules are connected with an ECU module. The direct type ultrasonic sensor modules each include two longitudinally-arranged ultrasonic probes, the included angle between the first ultrasonic probeand the ground is 90 degrees, the included angle between the second ultrasonic probe and the ground is 45 degrees. The sound alarm device controls the sound pressure and a tweeting mode according to the obstacle distance. A novel installing mode and a structural member are adopted for a truck, pairing testing is performed between the adjacent probes of the direct type ultrasonic sensor modules inthe perpendicular direction and the adjacent probes at 45 degrees, specific coordinates of an obstacle can be obtained precisely, and the pairing testing is favorable for reducing a blind corner.
Description
technical field [0001] The invention relates to a reversing auxiliary system, in particular to an ultrasonic-based reversing auxiliary system, which is especially suitable for trucks. Background technique [0002] At present, ultrasonic reversing radar has been gradually It has become a standard configuration for passenger cars. But in the field of commercial vehicles, especially the assembly rate of vans is still very low. There are still some problems in the application of common reversing radar on trucks. For example, the current reversing radar is mostly installed on the rear anti-collision beam, and the anti-collision beam is a vulnerable part, and at the same time, the short-range blind area is caused by the installation height being too high. [0003] The utility model patent with the announcement number CN 201833953U introduces a visual radar reversing device for a tractor, including a camera, a reversing radar and a display. The camera and the reversing radar are...
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IPC IPC(8): B60Q9/00G01S15/93
CPCB60Q9/008G01S15/931
Inventor 吕英超戴一凡郁宏
Owner 清华大学苏州汽车研究院(吴江)