2.9.1 Overview
The working speed control (ADC) is used to control the individual functions of the Digital inputs of the GRA. That is, no operation is possible in a vehicle GRA ADR is! Input: (Switch) (Button) (Button) (Button) (Switch) dimADR dimADP dimADM dimADW dimHAN dzmNmit fgmFGAKT mrmM_EWUN mrmM_EPWG mroM_EBEGR nlmNLact anmPWG mrmSICH_F mrmSTART_B mrmT_SOLEE mrmADR_Neo mrmADR_Nfe
dig. Input ADR Active dig. Input ADR + dig. Input ADR dig. Input ADR WA dig. Input handbrake
=> DimDIGprel.6 => DimDIGprel.0 => DimDIGprel.2 => DimDIGprel.C => DimDIGprel.3 Number of revolutions current speed
synchronous request quantity Desired quantity PWG Full-load
Overrun active Pedal position sensor Safety case
Start bit
Ramp-up time (from diagnosis) upper speed threshold (Diagnostic) Fixed speed (of diagnosis)
Output:
mrmM_EADR ehmFML2
Desired quantity ADR
ADR pilot light (With an active ADR is the Pilot light above ehmFML2 driven.)
There are two types implemented the ADR. The first possibility is the variable ADR, the second represents the fixed ADR dar. Both functions never occur together. The distinction
via the function switch cowFUN_FGR.
Description of the function switch cowFUN_FGR: Decimal 3 6 7 8 Comment
GRA with VW / AUDI control panel (see FGR) GRA with LT2 control panel (see FGR)
ADR variable working speed ADR with a fixed operating speed
2.9.1.1 states of the working speed control
Stand-by D
A
C
Demolition Waiting period
B
E
C
Regulate
Figure MEREAD01: States of the ADR
The following ADR state transitions apply to the variable, as well as for the fixed ADR. The ADR is first in the "stand-by".
A for activating the ADR has the engine speed is greater than the lower dzmNmit ADR Drehzahleinschaltschwelle mrwADR_Neu and smaller than the upper ADR
Drehzahleinschaltschwelle mrmADR_Neo and FahrgeschwindigkeitfgmFGAKT
be less than the activation threshold mrwADR_VAK. Furthermore start shedding has done be (mrmSTART_B = 0), the handbrake on his (dimHAN = 1) and then the
Be operated switch for ADR once (dimADR = 1, rising edge). During the transition to the state "waiting time" the target speed is initialized with the actual speed.
B After the time mrwADR_t_f (state "waiting period"), the ADR is in the state "Rules" next program. As a reference value the known actual speed will be used.
mrmSTART_B fgmFGAKT <mrwADR_VAK dzmNmit> mrwADR_Neu DEAD TIME mrmT_SOLEE & dzmNmit <mrmADR_Neo dimHAN dimADR DEAD TIME ADR active cowFUN_ADR.4 mrwADR_t_f cowFUN_ADR.4
Figure MEREAD02: ADR switch-
C. If the controller is terminated by a termination condition (see below), as it enters the State "Cancel".
D Only if no termination conditions are present, the controller will return to the state "Stand-by" switched.
E If the controller is terminated by releasing the handbrake on or off via dimADR so the target rotation speed is decreased by a ramp up to speed mrwADR_Nau. At This speed is reached is the ADR in the state "standby" state.
With the software switch cowFUN_ADR / Bit 4, the delayed ramp-up operation of the ADR be set (after slaked start bit), ie after a through Diagnostics / channel 27 (in
Second increments) applicable time mrmT_SOLEE starts the run. Erstinitialisierungswert for EEPROM: edwINI_ADT;
Default value when defective EEPROM: cowAGL_ADT
In the Message mrmADR_SAT of the ADR status is visible: Decimal KommentarWertHEX
0001H1Die ADR is in "stand-by"
0002H2Die ADR is in the "waiting period" 0003H3Die ADR is in the "rules"
Canceled 0004H4ADR operation 00FFH255ADR is locked
2.9.2 Variable working speed control
The variable ADR consists of various tasks: "Working speed controller
Operation "," working speed governor increase / decrease "," working speed controller PI controller ", "Working speed controller output", "working speed controller Cancel". DieAufgaben
"Working speed governor increase / decrease" and "working speed controller OFF" lead the User request + ADR / ADR and OFF by. The task "work speed controller PI
Regulator "regulates the engine speed to the target speed. The task" work speed controller Cancel " monitors all conditions which make one of the ADRs require discontinuation.
2.9.2.1 Operating speed controller operation
Depending on the operated contacts of the working speed controller (dimADP and dimADM) and / or the PWG ADR target speed mrmADR_SOL, and the initial value of the integrator the PI controller mroADR_I_A determined.
The contacts dimADP and dimADM, as well as the contacts for handbrake dimHAN and ADR Active dimADR be debounced in the processing of the digital inputs.
Description of the function switch mrwADR_SOL: Bit position
0 1
Decimal comment
1Sollwertvorgabe via keys (dimADP / dimADM) 2Sollwertvorgabe on PWG
2.9.2.2 Working speed governor increase / decrease
Once the requirements of the ADR are given, and the wait time expired mrwADR_t_f is, it can be activated by means of ADR + contact dimADP or ADR Contact dimADM. The ADR-set speed is displayed by pressing mrmADR_SOL of ADR + (dimADP) or ADR (DimADM) occupied with the current engine speed dzmNmit.
If the current engine speed is less than the threshold speed (dzmNmit <mrwADR_Nsc_) is "active ADR" in the target rotational speed mrmADR_SOL a ramp with a slope of mrwADR_dNP raised to the threshold speed mrwADR_Nsc. While the ramp is active can not change the speed via the contacts ADR + (dimADP) or ADR (dimADM) be. After reaching the target rotation speed Rampenendwerts mrmADR_SOL is mrwADR_Nsc minimized.
As long as the ADR + (dimADP) or ADR (dimADM) contact is operated, the ADR Target speed mrmADR_TSO within the speed limits and mrwADR_Neu mrmADR_Neo increased or decreased over the ADR-ramp slope mrwADR_dNP or mrwADR_dNM. If both buttons are pressed simultaneously, the ADR key has a higher priority and the Target speed is lowered. If bit 0 of the function switch mrwADR_SOL set, the
Setpoint speed via button mroADR_TSA used for the formation of the maximum set speed.
The setpoint input via PWG takes place by means of the characteristic mrwADR_KL that an implementation PWG allows (in percent) in speed. This speed mroADR_PSO after a
Minimum selection forwarded with mrmADR_Neo via a PT1 element mrwADR_GF if no Error (fbbEPW2_L, fbbEPW2_H, fbbEPWG_L, fbbEPWG_H or mrmSICH_F) is set. At set bit 1 of mrwADR_SOL the filtered speed mroADR_PWG to
Maximum formation of the target speed allowed.
After each working speed controller increase / decrease over the keys or the PWG
ADR target speed mrmADR_SOL with the current engine speed dzmNmit and the integrator of the PI controller mroADR_I_A preset with the current request amount mrmM_EWUN. The State of ADR in increasing or decreasing is condition "rules".
If RPM specification of the ADR on PWG (cowFUN_FV2 = 1 and mroADR_PGW> 0) or active solid ADR (mrmADR_SAT = 3 and cowFUN_FGR = 8 and cowFUN_FV2 = 1) be the abhänigen driving behavior-KF quantities (mrmM_EPWG and mrmM_EPWGR see Chap. 2.6.2 Speed-dependent driving behavior) set to 0. While turning the ADR non-
Amount jump the driver's desired quantity produced, is the driving performance of I-KF before shutdown Share it PI controller (mtoADR_I_A) with the current driver's desired quantity mrmM_EWUN
Speed-dependent. FVH
Geschwindigkeitsabh. FVH mrm M_EPW GR mrmM_EPWGR
Speed-dependent. FVH Geschwindigkeitsabh. FVH cowFUN_FVH mrmM_EPWG mrmM_EPWG mroADR_PWG> 0 cowFUN_FV2 & mrmADR_SAT = 3 cowFUN_FGR = 8 cowFUN_FV2 > 1 &
Figure MEREAD06: ADR on PW6
Description of the function switch cowFUN_FV2: Decimal comment
Not switching off 0Fahrverhaltenkennfeld with active ADR
1Fahrverhaltenkennfeld switching off is at ADR speed setting by PWG
2.9.2.3 Working speed controller PI controller
The PI controller of the ADR regulates the engine speed dzmNmit to ADR target speed mrmADR_SOL with the parameters mrwADP_ ... and mrwADI_ .... The control parameters are still after
Separately distinguished small-signal and large-signal according to P and I components. At a transition e.g. of increase / decrease to state "rules" may at the regulator output no amount of jump
. occur The initial amount of the PI controller mrmM_EADR is the maximum fuel
mroM_EBEGR limited. The ADR-set speed is in mrmADR_SOL, the I component of the PI controller visible on the olda mroADR_I_A and the P component on the olda mroADR_P_A. The state
ADR is the state of "rules". The maximum speed is about the mrmADR_Neo
Adaption channel 28 via diagnostic interface with adjustable Login (upper / lower limit: mrwADR_vmn or mrwADR_vmx).
dimADP mrmADR_Neo MIN mroADR_TSO RAMP mrwADR_dNP mroADR_TSO mrwADR_Neu MAX RAMP mrwADR_SOL.0 mrwADR_dNM dimADM mrmADR_Neo MIN mroADR_PWG PT1 MAX mrmADR_SOL anmPWG KL mroADR_PSO mrwADR_GF mrwADR_KL fbbEPW2_L fbbEPWG_L fbbEPW2_H fbbEPWG_H mrmSICH_F mrwADR_SOL.1 > 1 mrmADR_SOL
mrwADR_Nsc MAX mrmADR_SOL
mrwADR_Nsc mrmADR_SOL RAMP MIN mrwADR_dNP dzmNmit <mrwADR_Nsc mrmADR_SOL <mrwADR_Nsc ADR active &
Figure MEREAD03: speed determination of the ADR For mrmADR_Neo is Erstinitialisierungswert for EEPROM: edwINI_ADV; Default value when defective EEPROM: cowAGL_ADV
mrmADR_SOL dzmNmit I CONTROLS mroADR_I_A ADR demolition mrwADI_ ... mroM_EBEGR mroADR_P_A 0 1 CONTROLS mrmM_EADR P mrwADP_ ... mroM_EBEGR
Figure MEREAD05: Controller structure of the ADR
2.9.2.4 Working speed controller resumption
The activation of the WA is only in the states stand by and wait, and application of Setpoint selection via push button possible. From the states standby and waiting time after Abblauf the waiting time, the set speed in a state of control with the WA-speed mrmADR_SET occupied. When changing the setpoint speed the WA-speed is to me the current target speed occupied.
The keypad WA state is detected when - DimADW (WA button pressed) - DzmNmit> mrwADR_Neu - DzmNmit <mrmADR_Neo - MrmADR_SET <> 0
- ADR in the state stand-by OR - ADR in the state waiting time.
If the keypad WA state recognized and is the actual speed> mrmADR_SET, so is the new state of mroWA_Stat WA from above, is the actual speed <mrmADR_SET so is the new state of mroWA_Stat WA from below.
If as a simultaneously operated by the dimADW, dimADM and dimADP more keys, so the function according to the priority list dimADM, dimADP, dimADW is executed. If the condition standby simultaneously operated dimADW and dimADM, the WA speed is mrmADR_SET assigned 0.
Resumption from above:
AND AND AND
AND
In the transition from latency in accordance with rules, the target speed is occupied by dzmNmit, and in Result based on a speed ramp with a slope of mrwADR_dWM to mrmADR_SET
introduced.
Recovery from below:
In the transition from latency in accordance with rules, the target speed is occupied by dzmNmit, and in Result based on a speed ramp with a slope of mrwADR_dWP to mrmADR_SET
introduced. If the determined ADR request amount is greater than the maximum fuel then the Speed ramp stopped.
Recognized ADR rules and state = WA
In the transition from latency to rules of integrator of the PI controller with the current is Desired quantity allocated. While regulating the ADR quantity mrmM_EADR on [0, mroM_EBEGR] limited. If the current speed = mrmADR_SET as the state WA
deleted and the I component mroADR_I_A again with the current request amount mrmM_EWUN pre-assigned.
The current set speed in WA in the Oldas for speed influence over key mroADR_TSO, mroADR_TAS shown.
In the olda mroWA_STAT the Wiederaufnahmeart is visible: Bit position
0 1
Decimal comment
1Wiederaufnahme from above 2Wiederaufnahme from below
2.9.2.5 Operating speed controller OFF
In "working speed controller OFF" ADR setpoint speed via the ADR-ramp is mrwADR_dNA lowered to speed mrwADR_Nau. Once the ADR setpoint speed The controller output is achieved turn-off mrwADR_Nau switched to zero
(MrmM_EADR = 0) and only the idle controller remains active. Shall be considered as breaking conditions Here, only the parking brake is not operated (dimHAN = 0) or the ADR switch is not actuated
(DimADR = 0), or start shedding (mrmSTART_B = 0) is not yet done. In the olda mroADR_AUS the Ausschaltkondition is visible:
Bit position 0 1 2 Decimal 1 2 4 Comment
OFF via ADR switch dimADR = 0 OFF with manual brake dimHAN = 0
Delay due to start shedding mrmSTART_B = 1
2.9.2.6 Working speed controller demolition
The ADR will be canceled under the following conditions. In the olda mroADR_ABB is the Termination condition is visible:
o) Speed fgmFGAKT greater mrwADR_VAK (mroADR_ABB = 1), o) Speed dzmNmit greater mrwADR_Nao (mroADR_ABB = 2), o) Speed dzmNmit smaller mrwADR_Nau (mroADR_ABB = 4),
o) is a positive system deviation fbbEADRpR: Speed difference in the "rules" greater as a threshold mrwADR_pRA fbwEADRpRA for a time demolition of ADR and entry ADR positive deviation of the error in the error memory (mroADR_ABB = 8), o) with negative deviation fbbEADRnR without pressing through the PWG: Speed difference is in the "rules" of less than threshold mrwADR_nRA for a time
fbwEADRnRA and desired amount of ADR greater than or equal to the desired amount by the PWG (mrmM_EADR ≥mrmM_EPWG) Demolition of ADR and ADR entry of the error negative deviation in the error memory (mroADR_ABB = 16),
o) with negative deviation fbbEADRnR with overpressures by the PWG:
Speed difference is in the "rules" of less than threshold mrwADR_nRA for a time mrwADR_t_R and less than the requested quantity by the PWG desired amount of ADR (MrmM_EADR <mrmM_EPWG) Demolition of ADR without error entry (mroADR_ABB = 32)
In or out DZG Terminal 15 is defective (fboSDZG <> 0), the control mode also canceled, but there is no output on mroADR_ABB. If you cancel, the
Controller output is immediately switched to zero (mrmM_EADR = 0) and the normal idle speed control is active again.
The state is the state of ADR "Cancel". If none of these termination conditions to more and is either dimADR or dimHAN back to 0, then the ADR in the "Stand-by"
switched. After renewed activation (dimADR = 1 and dimHAN = 1), after the ADR Time mrwADR_t_f (state "waiting period") released again.
K15 from fboSDZG <> 0 fgmFGAKT> mrwADR_VAK dzmNmit> mrwADR_Nao > 1 dzmNmit <mrwADR_Nau mrmADR_SAT == 3 ADR demolition &
(MrmADR_SOL - dzoNmit)> mrwADR_pRA
DEAD TIME fbwEADRpRA
(MrmADR_SOL - dzoNmit) <mrwADR_nRA mrmM_EADR> = mrmM_EPWG & DEAD TIME fbwEADRnRA & mrmM_EADR <mrmM_EPWG dimHAN DEAD TIME mrwADR_t_R > 1 dimADR Off ADR
Figure MEREAD04: termination conditions of the ADR Is detected with active labor speed controller terminal 15, so the ADR request quantity is mrmM_EADR, and the ADR-set speed mrmADR_SOL immediately set to zero.
2.9.2.7 lamp test
After ignition on the ADR lamp is driven for the time mrwADR_t_L. 2.9.2.8 Configuration
About cowFUN_ADR the engagement of the ADR on other functions is configurable. Is set cowFUN_ADR.0 so with the handbrake applied, the error FGG plausibility with Speed and volume not reported (see monitoring concept FGG). Is with cowFUN_ADR.1 selected whether the ADR affects the parameter set selection of assets Ruckeldämpers. Is set cowFUN_ADR.1 so can be selected with cowFUN_ADR.2 which parameter sets vomAktivenRuckeldämpferverwendetwerden (sh.AktiverRuckeldämpfer,
Parameter set selection). Is cowFUN_ADR.3 set and work speed control is in the
State "rules" (mrmADR_SAT = 3) there is a shutdown of the exhaust gas recirculation. About cowFUN_ADR.4, the automatic ramp can be set (see Sect. 2.9.1.1.).
2.9.3 Fixed Work speed control 2.9.3.1 Operation
In contrast to the variable ADR, the setpoint is at the fixed ADR a fixed predetermined Value (fixed operating speed mrmADR_Nfe), the by on the adaptation channel 29 Diagnostic interface with adjustable log in (upper / lower limit: mrwADR_fmn or mrwADR_fmx).
Erstinitialisierungswert for EEPROM: edwINI_ADE; Default value when defective EEPROM: cowAGL_ADE
If the conditions are given to enable the ADR (dimADR = 1, dimHAN = 1 and there are no termination conditions), then after waiting mrwADR_t_f (see "Variable
ADR ") the ADR target speed mrmADR_SOL via Ramp mrwADR_dNP fixed to the
Working speed mrmADR_Nfe introduced. The waiting period must be observed before each activation. If the ADR off via the switch ADR-active or over the handbrake, then the
Reduced setpoint speed via the ADR mrwADR_dNA ramp and the speed according to the Desired quantity set (without ADR). All other termination conditions lead to immediate Flow shut-off of the ADR controller (see also "variable ADR").