Fisker Buzz Forums banner
1 - 16 of 16 Posts

·
Super Moderator
Joined
·
1,183 Posts
Discussion Starter · #1 · (Edited)
This was recently posted on the Karma Automotive owners forum:

Hello Fisker Karma owners,

It is with great pleasure that we announce the release of a new Fisker Karma software called Baseline 530. We highly recommend you to have this software installed in your vehicle by your closest CSP provider. Your CSP provider will use your available CSP funds to cover their expenses. For those of you without CSP funds remaining, we will find other ways to compensate the CSP provider. There will be no cost to you as an owner other than the time spent going to your CSP provider to have this work carried out. The software installation can normally be completed in one hour.

Should your CSP provider be unable to update your vehicle before the end of the CSP program on 01/31/2016, please make an appointment anyway with the description of any other repairs you would like to have done at the same time. Claims for these planned repairs will still be accepted by Karma Automotive for repairs after 01/31/2016 against available CSP funds as long as the appointment was made before 01/31/2016.

We hope to release the new software to all CSP’s before Christmas but are not making any hard promises today. We are still going through final validation.

Should changes occur between now and Christmas, we will keep the forum informed.

The content of Baseline 530 is described at the top of Page 1 on this thread as well as below this post.

As always, should you have questions or concerns, please do not hesitate to contact us by email at [email protected] or by phone at (toll free) 866-276-3589.

Our customer experience team is available from Monday to Friday from 6 AM to 6PM PST. Alternatively, reach out to fellow Fisker Karma owners by posting your questions, concerns or experiences on your owners forum here.

Regards,
Joost de Vries
VP Sales & Service

----------------------------------------------------------

BASELINE 530 CONTENT

This software release touches three areas in the vehicle.
ECM : Engine Control Module
BECM: Battery Energy Control Module
HCU: Hybrid Control Unit

It provides both new functionality in the vehicle as well as improvements over the current behavior of the vehicle. Below is a ‘non technical’ content description that advises what to expect from this software version.

Other acronyms used:
HV battery: High Voltage battery, this is located underneath the central tunnel between the seats. It consists of 15 battery modules with 21 cells per module.
SOC: State Of Charge. This normally refers to the level of charge existing in the HV battery pack.
RDM: Rear Drive Module, also being referred to as differential. It is the big block of metal over the rear axle that redirects the power from the traction motors to the rear wheels.
HVIL: High Voltage Interlock Loop. This is the low voltage circuits present in the vehicle to monitor the high voltage cabling and connectors.
ABS: Anti-lock Brake System
ESC: Electronic Stability Control

ECM software changes
Fuel level / Range
A new algorithm will improve the accuracy of the fuel level shown on the instrument cluster. Today, sloshing of fuel in the fuel tank as well as certain ‘dead zones’ in our dual sensor system can cause inaccurate readings on the instrument cluster which makes you believe you have more fuel remaining than what there really is. We have introduced a new algorithm tailored to the unique architecture of the Fisker Karma fuel system. We also incorporate readings from the fuel injectors in addition to the two fuel sensors in the tank which improves accuracy of the reported fuel level and reported remaining range.
As a side benefit, your technicians will have less error codes to deal with.

Note: 12v re-set or ECM re-flash
When the vehicle is 12v re-set or ECM re-flashed, the fuel level will show 100% full irrespective of what is actually in the fuel tank. As soon as the internal combustion engine (generator) starts the first time after a re-set or re-flash, the actual fuel level will be displayed.

Vehicle speed
Currently the vehicle displays its vehicle speed on the instrument cluster using sensor data from the traction motors. We have added the ability of the ABS sensors to provide accurate vehicle speed data should the traction motor sensor data be unavailable.

BECM software changes
Cell voltage monitoring
The new software will reduce overly conservative error codes when individual battery cells inside a battery module report a deviation in voltage values. This will allow you to continue using your vehicle with less occurrences of ‘check engine’ lights due to individual HV battery cell voltage variations.

HV battery charging
The new software has the low voltage circuit monitoring (HVIL) the high voltage circuit integrity to ensure that in the event of a high voltage wiring fault, the vehicle will not accept charge.

Low Temperature HV battery performance
The new software will adjust the amount of regenerative braking energy entering the HV battery to prevent an abrupt drop out of regenerative braking in cold conditions.

Onboard charging
We have eliminated false ‘engine check’ lights when using lower than expected AC current while charging. This is mainly directed towards the European market using 220v chargers.

The end of the ‘trickle charger’
The current functionality of the vehicle requires you to use a trickle charger to keep the 12v battery maintained during longer periods of vehicle disuse. The new software will allow the HV battery to maintain the 12v battery charge until the HV battery is drained to around 10% SOC at which point it will start to protect itself only. In all but extreme circumstances, a trickle charger will no longer be needed.

HCU software changes
Park Pawl
The diagnostics governing the Park Pawl (the pin that blocks the RDM when you put the vehicle in Park) has been improved. True mechanical Park Pawl problems are more reliably detected. As an owner you might not notice this improvement.

Mid speed growling noises
The new software will all but eliminate any residual mid speed growling noises coming from the RDM when you decelerate in the 55 mph to 40 mph range. This is achieved through torque biasing which allows appropriate levels of torque to remain present on the shafts and gears of the RDM in that speed range.

Low speed rattling noises
The new software will reduce residual low speed rattling noises from the RDM by applying appropriate levels of torque on the shafts and gears of the RDM at low speeds.

Low Temperature cooling system
Your vehicle has 2 parallel cooling systems. A high temperature (HT) cooling system for the internal combustion engine and a low temperature (LT) cooling system for the inverters, HV battery and generator.
The new software will allow the LT fans and pumps to operate at appropriate capacity should any of the temperature sensors fail to protect these components.
At the same time, the new software will eliminate the unnecessary operation of the LT fans and pumps during charging and when the vehicle is not in the Ready state (green colored start/stop button).

High Temperature cooling system
The new software will allow the cooling fan for the main radiator to turn off immediately when you turn off the vehicle if the ‘under the hood’ temperature is not too high.

New HV battery low SOC strategy
The new software starts limiting power at around 8% SOC in the HV battery. From that moment onwards, the vehicle will have a reduction in top speed and limited acceleration performance. Once the HV battery is depleted to around 5% SOC, a red telltale (warning lamp) will blink on the instrument cluster depicting “Low Battery” and vehicle performance is further reduced. You will notice this clearly.

Torque hole
In today's vehicle, when accelerating aggressively and the internal combustion engine starts up to assist (or you put it in Sport mode while accelerating) there is a very noticeable “torque hole”. You feel pressed back in the seat, then jerked forward (the torque hole) before you are pressed back in the seat again during your acceleration. This is caused by an over-discharge protection function of the HV battery that is too intrusive. The new software eliminates that torque hole feeling.

Cruise Control behavioral changes
The new software will add an ABS event as reason to cancel an active cruise control setting. In today's vehicle only an ESC event triggers that. Disabling ESC through the touchscreen will also disable the ability to set cruise control.
The software will limit activation or resumption of cruise control to vehicle speeds above 20 MPH and only accepts Cruise Control activation below 95 MPH.
Should the vehicle not be able to keep the requested cruise control speed within 10 MPH from the set target (steep incline or decline) for more than 5 seconds, an active cruise control setting will be cancelled.
The Resume function of cruise control now allows for a smoother acceleration profile if the original set speed is more than 20 mph from the actual speed of the vehicle when you hit Resume.
Today's vehicle doesn’t remember if you were driving in Hill 1 or 2 mode when you set the cruise control and then disengage it. The new software will remember if you were in Hill 1 or 2 before you activated cruise control. This will work both from a brake pedal cruise control cancellation as well as a steering wheel button cancellation.
The Cruise Control activation timing is now a little less sensitive (from around 200 milliseconds to around 290 milliseconds). Tap increase/decrease requests will now be ignored after around 380 milliseconds. Should you hold the increase/decrease switch longer than that, it will continually accelerate/decelerate until you let go of the switch.

Accelerator pedal sensors
The accelerator pedal sensor diagnostics have been improved in the new software. Should a discrepancy in value occur between the 2 sensors, the most conservative setting will now be used while the system undergoes self diagnosis.
The loss of signal from one of the sensors will now cause the vehicle to rely on the still functioning sensor albeit with reduced vehicle performance.

Panic shutdown
Should you initiate a Panic Shutdown event by continually depressing the ‘start/stop’ button while driving, the new software will only allow the vehicle to roll in Neutral.

Unattended vehicle
When the vehicle is left parked in System-Ready (you forgot to turn off the vehicle) you will drain the HV Battery slowly but surely. Around 11% SOC remaining in the HV battery, the generator will start up to recharge the HV battery. The new software will limit the time the generator is allowed to run to 60 minutes if no driver is present in the vehicle. If after 60 minutes the vehicle is not turned off, the external pedestrian warning system will start to emit an oscillating sound as warning. Around 6% SOC remaining in the HV battery, the contactors in the battery pack will open and the HV battery is electrically disconnected from the vehicle.

Generator coupler failure
The new software will trigger an EV only ‘limp home’ mode if the generator speed deviates significantly from the internal combustion engine speed. This will protect these components from additional damage should your coupler fail.

Stall detection
The internal combustion engine will be asked from the new software to restart itself if the generator speed drops below its minimum operating range.
 

·
Registered
Joined
·
829 Posts
Posted this question on the KA site, but there's more traffic it seems here. If anybody else has seen something like this, I'd like to know:

I just took my first ever long trip this weekend (over to the KA Petersen Museum Event). So, after a year of mostly driving all electric, I had the gas as low as I have ever had it. I kept the car in SPORT pretty much the whole time and never let my Stealth miles get below 27 until I was almost back home (I like to have the reserve in case something in the Genset fails). Along the way, I was getting a pretty consistent 26 MPG. But, I was pretty constantly monitoring my range and watching the counter go down, and suddenly I noticed that it had stopped dropping and locked at 126 total miles range. This means that since 27 of them are electric, the car believed it had around 4 gallons of fuel left. But, it stayed stuck at 126 and wouldn't go down for about an hour. So, I stopped and fueled, and it took over 7 gallons, so the actual range was probably closer to 80-100 at best than 126. The car did this to me twice on the way home sticking at exactly 126 on the range and not dropping any further. (On the way there, I stopped more often, so it never got down that low). Now also, both times I got that low, it was raining -- something my car doesn't see very often. And, I have had odd VCM behavior after rain (despite having the waterproofing fix). But, I fixed the seal at the base of my windshield since then.

So, my question ... Does that symptom sound like what they're trying to describe above as a "dead zone" in the fuel remaining sensor/software? And, is it possible that my car is behaving like most everybody else's and the software will likely fix this? Or, is this more likely some kind of Water Gremlin trying to punish me for taking my car out in the rain?

(Otherwise, the car performed like a champ!! Had a great trip!).
 

·
Registered
Joined
·
334 Posts
What date do csp recieve the update?
No exact date yet but possibly around Christmas:

"We hope to release the new software to all CSP’s before Christmas but are not making any hard promises today. We are still going through final validation."
 

·
Early Adopter
Joined
·
1,259 Posts
No exact date yet but possibly around Christmas:

"We hope to release the new software to all CSP’s before Christmas but are not making any hard promises today. We are still going through final validation."
WATT i saw the same thing on the KARMA site, I was hoping to get a CSP to tell us more definitive info if they had it ;-)
 

·
Registered
Joined
·
1,091 Posts
Our scan tool is being revised (long awaited) to help make our end more reliable and hopefully less problematic and more stable. The old scan tool is outdated and struggles alot. I will post once I've completed the 530 baseline successfully in my Karma and my vehicles in inventory, much better test pilots ;) @Nin ja since I have your car, you will obviously be getting 530 first from me but I'm not big on shipping a car back several hundred miles on new software until I see it working properly myself
 

·
Registered
Joined
·
829 Posts
@FiskerPhilly or @Harleyguy, do you guys have any comments for me from above? Nobody responded what the symptoms are that the 530 fixes for:

Fuel level / Range
A new algorithm will improve the accuracy of the fuel level shown on the instrument cluster. Today, sloshing of fuel in the fuel tank as well as certain ‘dead zones’ in our dual sensor system can cause inaccurate readings on the instrument cluster which makes you believe you have more fuel remaining than what there really is. We have introduced a new algorithm tailored to the unique architecture of the Fisker Karma fuel system. We also incorporate readings from the fuel injectors in addition to the two fuel sensors in the tank which improves accuracy of the reported fuel level and reported remaining range.
As a side benefit, your technicians will have less error codes to deal with.

Could this issue that they are addressing account for my range "sticking at 126 total miles" for 45 minutes when the actual range was probably 80-100 (based on the amount of gas I put in after having it stuck on 126 for a long while)? Am I getting this right?
 

·
Liked, but not well liked
Joined
·
1,172 Posts
There is a small feed pipe that connects the main sender (right side of the tank) to the left one. Previous fuel level was determined using the main sender and fuel flow rate from the second sender. The update now uses both senders and fuel flow rate from the injectors to determine fuel level.

With your case and the current SW they are just using the main sender on the right side of the tank and fuel flow rate from the left side, that is why there are grossly inaccurate readings.

Side Note: Would think it would be easier to just look at PSI at Fuel Pressure Regulator as it would be a straight forward logarithmic function to fuel level. Maybe they are doing this?
 

·
Premium Member
Joined
·
4,662 Posts
I was just wondering if anybody else currently sees their range "freeze" for extended periods at below half fuel levels.
I see it all the time. It is also very sensitive to vehicle pitch. Going up and down the streets in SF, the indicated fuel level varies widely.
 
1 - 16 of 16 Posts
Top