REVISION HISTORY © Rev AUTOLIV INC. THIS DOCUMENT AND 000 Description Date Initial Release per ECO 127519 Apprv’d Ref. PLM THE DATA DISCLOSED HEREIN OR HEREWITH IS PROPRIETARY AND MAY NOT BE REPRODUCED, USED OR DISCLOSED IN WHOLE OR IN PART WITHOUT WRITTEN PERMISSION FROM AUTOLIV INC. AEL, Inc. 1011B Pawtucket Blvd. Lowell, MA 01853 ATTENTION USER OF THIS DOCUMENT IS RESPONSIBLE FOR DETERMINING CURRENT REVISION LEVEL BEFORE USING DOCUMENT.
Title Installation Specifications and User Manual, 24 GHz Radar Sensor, Model 6208428 INSTALLATION SPECIFICATION 1.0 Doc. No. E814702 Rev. 000, Page 2 of 16 PURPOSE/SCOPE This document describes the specifications for installation of type 24 GHz Radar Sensors. 2.0 MATERIALS/EQUIPMENT N/A 3.0 APPLICABLE DOCUMENTS Outline see Fig 1. DIN 40050-9 IP6K9K IEC 68-2-6 Fc IEC 668-2-14Nb IEC68-2-32 IEC68-2-52 SAE J1211 4.
Title Installation Specifications and User Manual, 24 GHz Radar Sensor, Model 6208428 INSTALLATION SPECIFICATION Doc. No. E814702 Rev. 000, Page 3 of 16 5.2.1. Dimensions and Weight of the 24 GHz Sensor Figure 1 shows the dimensions of the 24 GHz sensor and details the mounting of the sensor. Please refer to Fig. 1 for the detailed drawing. Sensor weight: 150 grams max.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.0 Doc. No. E E814702 Rev. 000, Page 4 of 16 SPECIFICATIONS Figure 1 IMPORTANT NOTE: The two mounting holes are not specified for mounting the complete sensor. They do not provide the mechanical properties to keep the sensor in place. They shall be used to fix the sensor in a mounting bracket. Mounting tabs are to be fastened tight to mounting bracket using appropriate fastener.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.0 Doc. No. E E814702 Rev. 000, Page 5 of 16 SPECIFICATIONS 5.2 24 GHz Sensor (cont’d) 5.2.2 Keep-Out Zone / Azimuth Angle Measurement Range Figure 2 displays the keep out area of the 24 GHz sensor. Within the detection area of the antennas there must not be objects like screws, mounting brackets, license plates etc.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.0 Doc. No. E E814702 Rev. 000, Page 6 of 16 SPECIFICATIONS 5.2 24 GHz Sensor (cont’d) 5.2.3 Conductive material keep-out zone, Angle Elevation Figure 3 the conductive material keep out area of the 24 GHz Sensor Within the keep out zone there must not be metal parts like screws, mounting brackets, license plate etc.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.2 Doc. No. E E814702 Rev. 000, Page 7 of 16 24 GHz Sensor (cont’d) 5.2.4 Non-Conductive material keep-out zone, Angle Elevation (cont’d) Figure 3a 5.2.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.3 Doc. No. E E814702 Rev. 000, Page 8 of 16 Installation Specifications for Individual Sensors 5.3.1 Distance to the Bumper Material The distance of the 24 GHz Sensor to the bumper shall be between 5 and 20 mm. If the distance is below 5 mm a significant signal loss occurs. If the distance is larger, error ranges may appear within the close range. 5 – 20mm Figure 4 5.3.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.0 Doc. No. E E814702 Rev. 000, Page 9 of 16 SPECIFICATIONS 5.3 Installation Specifications for Individual Sensors (cont’d) 5.3.3 Effect of Type- and Thickness of Fascia Material Autoliv has examined various fascia material samples with a thickness of 2.5 – 4 mm. Fascia loss effects can be optimized by proper control of the material thickness and dielectric constant.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.0 Doc. No. E E814702 Rev. 000, Page 10 of 16 SPECIFICATIONS 5.3 Installation Specifications For Individual Sensors (cont’d) 5.3.6 Protection from Mud and Dirt Buildup There will be performance degradation if excessive buildup occurs on the antenna areas and especially for wet mud.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.0 Doc. No. E E814702 Rev. 000, Page 11 of 16 SPECIFICATIONS 5.3 Installation Specifications for Individual Sensors (cont’d) 5.3.8 Side Blind Spot Application 5.3.8.1 Sensor Height vs. Elevation Angle Please follow the following table for setting the elevation angle of the Side Blind Spot sensor.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 5.0 Doc. No. E E814702 Rev. 000, Page 12 of 16 SPECIFICATIONS 5.3 Installation Specifications for Individual Sensors (cont’d) 5.3.9 ESS-SRR Application 5.3.9.1 Sensor Height and Elevation Angle Please follow the following table for setting the elevation angle of the ESS-SRR sensor. If packaging above 500 mm is not possible, please consult Autoliv resident engineer to assess alternate locations.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 6.0 Doc. No. E E814702 Rev. 000, Page 13 of 16 24 GHZ SENSOR SYSTEM The following observations refer to the combination of several 24 GHz Sensors into one sensor system. Many applications require several sensors networked together to achieve the desired function. The sensors should be placed in the best possible location for optimal coverage and range performance relative to the specific applications.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 6.0 Doc. No. E E814702 Rev. 000, Page 14 of 16 24 GHZ SENSOR SYSTEM 6.2. Numbering of the Sensors The following provides a guideline for sensor numbering (addressing) in a multi-sensor system. The example used is for a front and rear bumper system. Each bumper contains up to 4 sensors connected on a private CAN bus. A separate CAN bus is used for the front and rear bumpers.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION 6.0 Doc. No. E E814702 Rev. 000, Page 15 of 16 24 GHZ SENSOR SYSTEM 6.3. Installation Dimensions 6.3.1 Y-Direction The Y location of the sensors will determine the extent of the coverage zone and the size of any detection gaps. The location selections are highly dependent on the desired application and bumper dimensions.
Title: Installation Specifications and User Manual, Radar Sensor, 24 GHz INSTALLATION SPECIFICATION Doc. No. E E814702 Rev. 000, Page 16 of 16 APPENDIX A EFFECT OF PAINT Depending upon the type of paint, number of coatings, base coats used, etc. the attenuation of the radar signal was measured between 2 and 5 dB (corresponds to reduction of coverage between 11 and 25%). Because attenuation has significant impact on performance, prior inspection of the material and paint samples are suggested.
