Bosch CR5CBCC User Manual Download | Manualshive

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Budapest

10 June 2021

From

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XC-DA/ECR3-Bp

Daniel Radics

+36 1 879-6276

Page 1 of 17

CR5CBCC_User_manual.docx

Contents
1

Description of CR5CBCC parts ........................................................................................... 2

Explanation of CW Radar function ...................................................................................... 3

Operation principle of the CR5CBCC .................................................................................. 5

User information ................................................................................................................. 5

General description ..................................................................................................... 5

Areas of application ..................................................................................................... 6

Blind spot detection .............................................................................................. 6

Lane change assist ............................................................................................... 6

Rear Cross Traffic Assist with braking .................................................................. 6

Door opening warning........................................................................................... 6

Rear collision warning........................................................................................... 6

Front Cross Traffic Assist - Information ................................................................. 6

National statements ............................................................................................................ 7

Canada ........................................................................................................................ 7

Chinese Warning Statement ........................................................................................ 7

European Union ........................................................................................................... 7

United Kingdom ........................................................................................................... 7

United States ............................................................................................................... 8

Vehicle integration .............................................................................................................. 8

Radar cone .................................................................................................................. 9

Fascia design guidelines ........................................................................................... 11

Installation Hints ........................................................................................................ 12

Calibration ........................................................................................................................ 17

Technical Data .................................................................................................................. 17

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Topic

CR5CBCC User Manual

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Specific for International Type Approval purposes.

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Summary of Contents for CR5CBCC

Page 1: ...2 2 Lane change assist 6 4 2 3 Rear Cross Traffic Assist with braking 6 4 2 4 Door opening warning 6 4 2 5 Rear collision warning 6 4 2 6 Front Cross Traffic Assist Information 6 5 National statements 7 5 1 Canada 7 5 2 Chinese Warning Statement 7 5 3 European Union 7 5 4 United Kingdom 7 5 5 United States 8 6 Vehicle integration 8 6 1 Radar cone 9 6 2 Fascia design guidelines 11 6 3 Installation ...

Page 2: ... Topic CR5CBCC User Manual Budapest 10 June 2021 Page 2 of 17 Report CR5CBCC_User_manual docx 1 Description of CR5CBCC parts radome RF absorber PCB thermal pads shield heatsink bottom part of housing with connector Figure 1 CR5CBCC assembly view Pressure compensation element ...

Page 3: ... the landing procedure of aircraft It is also used as early warning radar wave radar and proximity sensors Doppler shift is not always required for detection when FM is used In this system the transmitted signal of a known stable frequency continuous wave varies up and down in frequency over a fixed period of time by a modulating signal Frequency difference between the receive signal and the trans...

Page 4: ...tween the transmit signal and the reflected signal increases with time delay distance The time delay is thus a measure of the range a small frequency spread is produced by nearby reflections a larger frequency spread corresponds with more time delay and a longer range Ranging with an FM CW radar system if the error caused by a possible Doppler frequency can be ignored and the transmitter s power i...

Page 5: ...ar direction and derived values are basis for building a comprehensive model of the sensed environment 4 User information 4 1 General description The CR5CBCC radar sensor and control unit SCU contains a FMCW radar transceiver operating in the globally harmonized frequency range of 76 0 77 0 GHz It senses targets by emitting many short frequency modulated waves using the transmit antennas while rec...

Page 6: ...ith braking Optical and or acoustic warning of the driver on vehicles crossing the estimated path of the ego vehicle in the rear area e g backing out of parking spaces 4 2 4 Door opening warning The door opening warning DOW feature shall detect target vehicle in the door opening warning zones DOW feature warns the driver and passengers against collisions that may occur with target vehicle passing ...

Page 7: ...ils radio exempts de licence L exploitation est autorisée aux deux conditions suivantes 1 l appareil ne doit pas produire de brouillage et 2 l utilisateur de l appareil doit accepter tout brouillage radioélectrique subi même si le brouillage est susceptible d en compromettre le fonctionnement 5 2 Chinese Warning Statement 取得審驗證明之低功率射頻器材非經核准公司商號或使用者均不得擅自變更頻率加大功率或變更原設計之特性及功能低功率射頻器材之使用不得影響飛航安全及...

Page 8: ...d in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Radiofrequency radiation exposure Information This equipment complies with FCC radiation exposure limits set forth for an un...

Page 9: ...A simulation can be offered to evaluate the risk and the need of using absorber material to suppress this unwanted signal Because the threshold of detection is very low a high attenuation is required Plastic material can only achieve high enough attenuation if carbon black is added 6 1 Radar cone The radar cone describes the zone where the fascia has to be optimized Any parts of the vehicle inside...

Page 10: ...ed installation CR5CB The horizontal opening angle depends on the angle range that is evaluated by the sensor in azimuth and elevation whereby the opening angle of the radar cone has to be larger than the angle range that is evaluated For covered integration the radar cone is 10 larger than the used angle range that is evaluated by the sensor Radar cone 80 1 tbc in horizontal direction not includi...

Page 11: ...e fascia Tolerances of the overall thickness and the dielectric constant of the used material influence the amount of reflection at the radome fascia Additional influence occurs due to curvature of the fascia Therefore the radius has to be as large as possible With sharp edges the negative influence will increase significantly Not allowed are ribs structures and steps changing the thickness of the...

Page 12: ...ectric loss factor tanδ 0 02 Reflection coefficient 6 dB The attenuation may exceed the maximum allowed limit The examples described in the classification of the fascia are derived from evaluation of flat plates with constant thickness and homogeneous material Deviations from this situation may cause a change in classification Surface Properties of the fascia The surfaces of the fascia shall not e...

Page 13: ...of the vehicle may not be smaller than 3 mm This is valid for fascia parts fulfilling the following requirements Figure 5 Minimum distance above sensor radome The distance between the sensor radome and the fascia should be however as close as possible to the minimum value in order to reduce the risk of multipath reflection and consequently to prevent ghost targets Vertical tilt of fascia CR5CB The...

Page 14: ...Type of fascia 2 14 dB 0 1 mm single value 0 05 0 03 unpainted black bumper 6 10 dB 0 2 mm single value 0 05 0 03 unpainted black bumper 6 dB range from 2 5 to 3 2 0 05 0 02 painted bumper 8 6 dB range from 2 5 to 3 2 0 05 0 02 painted bumper Table minimum vertical tilt angle of fascia to sensor normal The values provided in the previous table are derived from evaluation of flat plates with consta...

Page 15: ... the following design guidelines reflection from outside the radar cone multipath reflection Reflection from outside the radar cone Reflections from structures located outside the radar cone have to be avoided Furthermore interference signals picked up by the sensor antennas should be avoided by keeping a minimum distance d of 5 mm to 10 mm for parts in front of the sensor Even with compliance to ...

Page 16: ...ace and the normal vector n of the sensor shall be greater than the azimuth opening angle of the keep out zone Multipath reflection Reflections of incoming signals at bracket or shielding absorber are coming back to the sensor if reflection at the bumper occurs The figure below shows the situation which should be avoided The worst case happens if the combination of the vertical tilt angles of shie...

Page 17: ...nual docx 7 Calibration No manual alignment procedure is necessary as the sensor performs it s own internal SW calibration 8 Technical Data Product model name CR5CBCC Frequency Band 76 77 GHz Maximum Transmit Power Nominal mean EIRP 18 58 dBm Maximum Transmit Power Measured mean EIRP 17 96 dBm Maximum Transmit Power Measured peak EIRP 26 97 dBm XC DA ECR3 Bp ...

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