Annex No.5 Functional Description User Manual SIEMENS VDO Automotive AG SV C BC P2 RF TG FCC ID:KR55WK48952 IC:267T-5WK48952 Functional Description /
User Manual of the Siemens VDO Keyless Vehicle Module type 5WK4 8952 File: I:\POSTZULA\Volvo\KVM\TechnicalDocu\Funktionsbeschreibung_KVM_v2.doc Page 1 of 5 SIEMENS VDO Automotive AG SV C BC P2 RF TG FCC ID:KR55WK48952 IC:267T-5WK48952 Functional Description 1. General functional description This short system description gives an overview about the functionality of the Keyless Vehicle (KV) system and from the Keyless Vehicle Module (KVM). The vehicle and the Passive Key (PK) will communicate via challenge / response. By any request the KVM sends a challenge via the respective Low Frequency (LF) antennas with 125 kHz to the Passive Key. The PKs within the detection range an-
swer with the identification code via Radio Frequency (RF) transmission. The external RF Receiver sends the data from the received signal via serial link to the KVM. 2. Passive entry, passive exit 2.1 Unlocking With a valid PK within the outside detection range of the vehicle, the customer will be able to open each door of the passenger compartment and the tailgate. Woken up by pulling a door handle the KVM sends a challenge125 kHz via the cor-
responding inductive door handle antenna to the Passive Key. After receiving the challenge data the Passive Key sends the response data via RF to the external re-
ceiver. If the identification code received is valid the KVM sends the unlock request command via CAN-Bus to the Passenger Junction Box (PJB). 2.2 Locking To lock the vehicle, the customer has to push the Lock Button mounted in any door handle once and a valid PK has to be detected within the respective door handle de-
tection range. 3. Passive start/stop The KV system will provide an inside detection range, which will cover the passenger compartment. File: I:\POSTZULA\Volvo\KVM\TechnicalDocu\Funktionsbeschreibung_KVM_v2.doc Page 2 of 5 SIEMENS VDO Automotive AG SV C BC P2 RF TG FCC ID:KR55WK48952 IC:267T-5WK48952 3.1 Engine Start / Unlock of Steering Column The starting action will be handled via a rotating Ignition Switch, which provides igni-
tion off, accessory, ignition on and crank position. With a valid Passive Key within the interior detection range, the customer will be able to start the engine after pushing the brake (automatic transmission) or pushing the clutch pedal (manual transmission). After detection of a valid Passive Key the KVM sends the release command to the Smart Steering Column Device (SSCD) via which fulfills a mechanical release and permits the customer to rotate the Ignition Switch to any position (ACC, Run, Start). Without detection of a valid PK, the Ignition Switch and the steering column remains locked. The Engine Control Unit receives authorization to start engine from the KVM via CAN-Bus from the Cluster module. 3.2 Engine Stop / Lock of Steering Column For Engine Stop the Ignition Switch must be rotated to ACC position. 4. Block diagram Keyless Vehicle Module Polled Wake up KVM Inputs Kl. 31 FL clutch FR clutch RL clutch RR clutch Clutch Tailgate FL lock FR lock RL lock RR lock FL unlock FR unlock RL unlock RR unlock T.gate Lock KeyIn_Start Brake FL clutch FR clutch RL clutch RR clutch Clutch Tailgate FL lock FR lock RL lock RR lock FL unlock FR unlock RL unlock RR unlock GlassR KeyIn_Start Brake Kl.30 Measurement Quarz 16 MHz internal Watchdog Microcontroller MC9S12B128 CAN High CAN Low MS C AN TJA1040 SRx_ Serial SRx Interface EN_CAN CAN TxD CAN RxD TxD RF RxD RF CAN 2.0 SCI r o t c e n n o C M V K Polling Power_On_LF Power Supply Stabilisation, reverse voltage protection Voltage Regulator Vcc limitation
+12V switched Vcc switched Step up regulator Kl. 30
+12V_L
+16V
+12V_Ges ch VCCS VCC
+20V
-7V Power_LF, Power_on_LF 2MHz_Takt Power 2, Power 1,Power0, Power M1,Power M2,Power M3 TxD_To_LF_Stage AD_Temperatur Biterror AD_Ant1, AD_Ant2 Ant_Diag1,Ant_Diag2 Ant_Diag3 Ex_Tr, Int_Tr, Int1&2, Left_A,Right_A FL_Latch+, FL_Latch-
FR_Latch+, FR_Latch-
RL_Latch+, RL_Latch-
RR_Latch+, RR_Latch-
r o t c e n n o C M V K Ext_Trunk1_Ant +&-
LF-Stage Int_Trunk1_Ant +&-
Antenna Diagnostic Antenna Relay Matrix Release Motor Latches Relay Matrix Interior_Ant1 +&-
Interior_Ant3 +&-
FL_Door_Ant +&-
FR_Door_Ant +&-
RL_Door_Ant +&-
RR_Door_Ant +&-
FL_RM_Latch+
FL_RM_Latch-
FL_RM_Latch+
FL_RM_Latch-
FL_RM_Latch+
FL_RM_Latch-
FL_RM_Latch+
FL_RM_Latch-
File: I:\POSTZULA\Volvo\KVM\TechnicalDocu\Funktionsbeschreibung_KVM_v2.doc Page 3 of 5 SIEMENS VDO Automotive AG SV C BC P2 RF TG FCC ID:KR55WK48952 IC:267T-5WK48952 Keyless Vehicle Module (ECU) LF antenna V3 LF antenna V2(housing variant) LF antenna F2 (housing variant) LF antenna V1 (housing variant) 5. List of variants 5WK48952 5WK47894 5WK47893 5WK47891 5WK47895 6. Technical Data Carrier frequency:
Field strength:
Modulation:
Supply voltage:
Battery type Range:
7. Typical Usage Pattern (for Europe only) 20 actuations of access control system within 24 hours with a typical transmission time of 0.07 seconds / hour. Transmission time TON Off time T OFF Duty Cycle: TON / T (ON+OFF) x 100% = 0.07 / 3.600 x 100 % = 0.02 %
125 kHz +/- 1 kHz
< 42 dBA/m @ 10 m ASK 13 V Car battery
< 2 m seconds / hours seconds / hours 3599.93 0.07 File: I:\POSTZULA\Volvo\KVM\TechnicalDocu\Funktionsbeschreibung_KVM_v2.doc Page 4 of 5 SIEMENS VDO Automotive AG SV C BC P2 RF TG FCC ID:KR55WK48952 IC:267T-5WK48952 8. Label Design Europe:
Siemens VDO 5WK4 8952 USA/CAN:
Siemens VDO 5WK48952 FCC ID:KR55WK48952 IC:267T-5WK48952 This device complies with part 15 of the FCC Rules and RSS-210. Operation is subject to the following two conditions: (1) This device may not cause harmful inter-
ference, and (2) this device must accept interference received, including interfer-
ence that may cause undesired operation. NOTE:
Changes or modifications not expressly approved by the manufacturer could void the user's authority to operate the equipment. File: I:\POSTZULA\Volvo\KVM\TechnicalDocu\Funktionsbeschreibung_KVM_v2.doc Page 5 of 5