Category: Blog startsida

Are You Old Enough to Remember the Torque Drop in the Steering Wheel When the Front Tyres Started Losing Grip?


Has the vital feedback from slippery roads forever been sacrificed for the convenience and features of modern power steering? Despair no more. It’s back in the shape of Limit Handling Feedback and it’s better than ever!

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This two minute video shows you how Limit Handling Feedback works in the BMW 5 series.

Note: Limit Handling Feedback is a part of Blueprint Steering.


activesafety, Blueprint Steering, feedback, limit handling, oversteer, safety2, safetyII, steering feel, understeer, vehicledynamics

Patrik Fagerberg – New CEO at Sentient

Sentient continues to expand and has now recruited Patrik Fagerberg as its new Chief Executive Officer (CEO).

Patrik Fagerberg has extensive experience from the automotive industry and is an important key in upscaling at a pace that meets the increasing demands for Sentient’s software functions.

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“As Sentient’s functions are now in production and performing excellently on the roads, several leading vehicle OEMs have shown great interest in our features, particularly those in steering fidelity,” says Johan Hultén, co-founder and Chief Technical Officer.

Sentient’s technology is based on a genuine understanding of how drivers – experienced as well as less experienced – execute driving. This knowledge brings solutions that in many respects differ from the way current safety functions work.

Sentient is a Swedish company, founded in 2009, providing functions for vehiclesteering and vehicle motion control.

“Sentient offers very exciting functions and technology which fit perfectly with both current and future vehicles, and an increased level of autonomous driving. I hope that I, together with Sentient’s team and our customers, can contribute to safer vehicles worldwide,” says Patrik Fagerberg, who is already in his position as CEO of Sentient.


How the Next Generation Stability System Interacts with the Driver

Human error is the cause of most road accidents. On the other hand, humans are amazingly good at avoiding accidents, with 100 million miles driven for every fatality. An obvious possibility for stability systems is therefore not only to counteract poor human performance, but also to enhance good human performance.

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Loss of control due to an oversteer situation is a dangerous event. S+ Oversteer Control uses a guiding steering torque to regain stability quickly and smoothly. Moreover – at the very beginning of the event – this guiding torque will inform the driver of the poor grip being exhibited by the rear end of the vehicle. The driver then has a chance to reduce speed even before instability manifests.

Oversteer can arise from the driver making an evasive manoeuvre, to avoid hitting another car, child or perhaps a wild animal. In a case like this you not only want to regain stability, but also avoid the obstacle. The driver can seamlessly adjust the torque to achieve the desired path, while S+ Oversteer Control effectively assists in keeping the car in balance. The intuitive means of interaction makes sure that the all-important intention of the driver is included in the control loop.

PS: A bonus is that the driver has the feeling of being an expert. This makes S+ Oversteer Control the only stability system that is truly fun to drive. But that’s another story.


Learn more about S+ Oversteer Control:

How to Make an Average Driver an Expert Driver


activesafety, roadsafety, safety2, safetyII, vehicledynamics, vehiclestabilitysystems

Join us Making an Expert of Every Driver. We’re Hiring Active Safety Developers for Autonomous Vehicles.


In the hype of autonomous driving, driverless cars will need to be able to handle critical situations on the same level as very skilled drivers.

Sentient makes this happen. Want to join our team?

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What if autonomous vehicles were driven like a mediocre driver was driving them? Would anyone with a high level of driving skill accept being driven in a car like that? Would he/she feel comfortable sending his/her children off to school, or to their leisure activities, in autonomous vehicles like that?

Would the public accept the autonomous cars on our roads performing worse than if a skilled driver were behind the wheel?

The answer to those questions is no.

Neither skilled drivers nor the general public would accept autonomous driving that’s less safe than today’s cars being driven by experienced drivers.

However, in the hype of autonomous driving, little is said about the critical situations every car will have to deal with, situations like aquaplaning and skidding on ice at high speed. We’re convinced that, when introducing autonomous driving, driverless cars will need to be able to handle critical situations on the same level as very skilled drivers.

Figure: Expectations regarding the capability to handle a critical dynamic situation.

That’s why Sentient’s Vehicle Motion Control makes the average driver an expert one, at the very least. Where traditional ESP prevents instabilities,  e.g. oversteer, Vehicle Motion Control prevents instabilities and follows the intended path, keeping the vehicle within its lane.

See the demo showing when our ‘artwork’ was presented to the King of Sweden using our patented Vehicle Motion Control:


To strengthen our pace of development even further, we’re seeking talented people for the following roles:

  • Function Developer
  • Functional Safety Analyst


Working in a very dynamic team, you’ll make a difference, developing and integrating the next generation of active safety functions for autonomous vehicles at Sentient.


Working with development at Sentient means that:

  • You’re creative and analytical
  • You like to systematise/automise repeated tasks to get the time to develop new things
  • You should have an MSc in Mechanical Engineering, Engineering Physics, Mechatronics, Automation, Signal Processing, Electronics, Computer Science or similar
  • You have a minimum of 3 years’ experience in the field.

Function Developer

Working as a Function Developer means that:

  • You should have extensive experience of physical modelling and Matlab/Simulink

Functional Safety Analyst

Working as a Functional Safety Analyst means that:

  • You should have extensive experience of ISO 26262


If you’re the right candidate, don’t hesitate to send in your application, by 2019‑06‑30 at the latest, to

Selection and interviews will be taking place continuously. The position may be filled before the closing date, so please apply as soon as possible.

For futher information, please contact Johan Hultén on +46 73 631 3780.

To learn more, visit:



active safety developer, career, function developer, functional safety analyst, jobs, open positions

Not an Ordinary Family Transport

This brand new top equipped Mazda CX-5 will not enter its life as an ordinary family transport! Sentient just took delivery of the latest addition to its test vehicle fleet. With just 7 km on the odometer, the keys were handed over to Ulf for some surgery to the car.

It will, of course, be injected with S+ Blueprint Steering as soon as possible. We will come back shortly with more on how this is done. Then we will push the vehicle dynamics of this car to the limits with the benefit of Sentient software solutions. The expected sleepy suburban life for this car is exchanged for a top athletic life on test tracks and winter expeditions. What a treat!

Find out more about S+ Blueprint Steering.

active safety, blueprint, feel, Steering

How to Make an Average Driver an Expert Driver

In an oversteer situation, ESP works well in stabilizing the vehicle, but not with very high precision in the vehicle position. S+ Oversteer Control considerably reduces the instability as well as the risk of ending up outside the lane. S+ Oversteer Control increases the vehicle safety and has already started to save lives.

Watch the difference in vehicle position between standard ESP and S+ Oversteer Control.

Blueprint Stability, S+ Oversteer Control

Experience World-Class Driving with S+ Steering

Since 2013, customers of a leading OEM of commercial vehicles have enjoyed a high level of comfort, control and stability through S+ Steering. S+ Steering works just as well for passenger cars and have an extensive interface suited for driver assistance systems and fully autonomous vehicles. Click on the image below to watch how S+ Steering contributes to steering precision and direction stability.

The film has been made by one of the world’s leading manufacturers of heavy vehicles. Our steering software, S+ Steering, plays a leading role in this promotion video, also featuring stars like Jean Claude van Damme in the viral success The Epic Split on YouTube. The actor is known for his splits, but this is probably the first time a video like this goes viral. By pressing the link above, you will watch on YouTube the epic split by Jean-Claude Van Damme between two reversing trucks from a leading truck manufacturer.

We Do It With Steer-by-Wire

The capability of Sentient’s Vehicle Motion Control exceeds the ability of human drivers. To achieve this, the angular speed of the steering wheel need to be greater than 1500 °/s. Using a car with a steering wheel moving that fast would be unsafe, e.g. sticking a finger into the wheel could lead to bone fractures.

Also, in Autonomous Vehicle Motion Control, you would prefer to keep the steering wheel still to avoid any annoying motions.

Sentient’s steer-by-wire has the unique combination of disturbance rejection and premium steering feel and it has been in production since 2013.

ESP is not Enough for Autonomous Driving

According to the US Department of Transportation and NHTSA’s publication ( an Autonomous Driving System (ADS) is responsible for performing Object and Event Detection and Response.

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This refers, on one hand, to the detection of any circumstance that is relevant to the immediate driving task, and on the other hand, implementation of the appropriate driver or system response to such circumstance.

When shifting to autonomous driving we have an opportunity to make car transportation safer from day one, which we know wasn’t the case for manually driven cars. The appropriate system response in a critical situation, such as skidding on icy roads, should and can result in a behavior that is far more safe than advanced driving in traditional cars with ESP. Why not just do it?

Watch our film demonstrating the difference between Vehicle Motion Control and ESP in an autonomous car.


Autonomous Driving is About to Become Dangerous if not…

Today, autonomous driving is about to become more dangerous on the roads than traditional vehicles handled by experienced drivers. We…
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Today, autonomous driving is about to become more dangerous on the roads than traditional vehicles handled by experienced drivers. We claim that neither skilled drivers nor the general public shall accept that autonomous driving is less safe than today’s cars driven by experienced drivers, and we have the solution.

In the hype of autonomous driving, very few speak about the critical situations every car, autonomous or not, will have to handle. A self-driving car will have to handle critical situations, such as aquaplaning and skidding on ice in high speed. This is an important aspect of safety that needs to be addressed in public. We are convinced that for introducing autonomous driving, driverless cars that controls critical situations in parity with very skilled drivers is a prerequisite.

It is a reasonable assumption that the market for self-driving cars will be defined by society as well as by experienced drivers, such as test drivers or vehicle journalists. The society will probably not accept that autonomous vehicles are more dangerous than today’s average vehicle fleet – at a minimum. Customers’ expectations will vary depending on their knowledge about the functionality of autonomous vehicles. The informed customer will, just as an experienced driver, not accept self-driving cars with less safety than a car with an experienced driver.

Expectations of capability to handle a critical dynamic situation.

Sentient’s Vehicle Motion Control makes the average driver at least an expert driver, reducing the risk of accidents. Where traditional ESP prevents instabilities, Vehicle Motion Control prevents instabilities and follows the intended path.


Autonomous Driving: “They aren’t Sentient, Rolling Androids”

The autopilot function in cars like Tesla might lead the driver into misconception and unfavourable behaviour.
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So far, we cannot leave the responsibility of driving to the vehicle as stated by Matthew DeBord, Nordic Business Insider,

If true autonomous driving is to be a reality the car has to be sentient – it has to be able to perceive and feel critical situations as well as avoid occurrence of accidents by e.g. evasive manoeuvres.

Autonomous vehicles, such as Tesla aren’t sentient, rolling androids – yet!


The Market for Safe Autonomous Vehicles is Where We Create It

Have you experienced something similar to this? Think of a situation with a normal car of today and quite bad weather. Assume that you are an experienced driver, and that the others in your company is not. You will offer to drive and everybody, including you, will be happy about it.
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This is analogous to a future with autonomous vehicles. Skilled drivers will not be able work or sleep in the car if the vehicle itself isn’t at least in parity with the skill of his own.
U.S. Transportation Secretary Elaine Chao called on Silicon Valley to “step up” and explain self-driving technology to help the public overcome its fears of robots taking the wheel.

Chao points at a critical fact. Unless someone explain, the market will not understand that autonomous driving require higher safety standard once self-driving cars are introduced. And as we know it, traditional technology development will be a slow movement toward safer vehicles.
It’s obvious that the market eventually will require active safety and vehicle control functionality in parity with very skilled drivers, such as journalists or test drivers. It is our obligation to make sure that the vehicle fleet produced will be in parity with experienced drivers. What is your opinion?

We noise about reasonable customer requirements and we provide the market with solutions to such requirements..


We Make Autonomous Driving Safe through Vehicle Motion Control

Have you seen the manoeuvre in our latest film The Lane Change, Episode II? The manoeuvre was done by a predefined path including a 360 degrees power-sliding pirouette.
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With the manoeuvre, we want to show that we can control the car under extreme conditions and more importantly – follow the predefined path fully autonomous. This is possible with an integrated brake and steering control and it means that the car can evade objects on or near the road more efficiently than with conventional control.


The Lane Change, Episode II

This manoeuvre is possible with integrated brake and steering control.

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Watch Sentient’s Autonomous Vehicle Motion Control perform a lane change in extreme winter condition.

Filmed in Arjeplog, Arctic Circle, Northern Sweden

Don’t miss coming films and exciting material in this blog.


The Lane Change – Episode I

This manoeuvre is possible with integrated brake and steering control.

Watch Sentient’s Autonomous Vehicle Motion Control perform a lane change in extreme winter condition.

Filmed in Arjeplog, Arctic Circle, Northern Sweden

Don’t miss coming films and exciting material in this blog.