Insight: FIA ETRC brakes - Always under pressure
Slowing down or stopping a 5.3-tonne race truck from high speed puts a tremendous stress on brakes. Therefore brakes systems used in the FIA European Truck Racing Championship are unlike any others elsewhere in motorsport.
One of the unique aspects of the systems in use is the fact they are air-operated. “We have pneumatic brakes,” – says Stefan Honens, Technical Director at Tankpool24 Racing.
That in turn makes braking a tricky art for the driver. “You have no feedback, you’re pressing against the spring basically. You have to have the feeling or you have to find the [right] position of the pedal,” explains the man for whom truck racing brakes have no secrets.
On safety grounds, brakes are perhaps the most important components of race trucks and they have no right to fail. That enforced another distinctive aspect of the systems – their duality.
“Because of safety we have two circuits (front and rear), so there’re two air tanks,” says Honens. “Then we have a foot valve, two circuits (front and rear) and with the foot you steer the air out of the tanks into the brakes pipes and there’s and ALB valve (Load Sensing Valve) in between, so that you can adjust the amount of pressure going into the chambers through a device where’s a certain characteristics behind.
“So, basically on standard trucks the ALBs are based on air bag pressures, so regarding ‘on load’, we simulate the load to these ALBs and depending on that load it steers more or less air into the activators of the brakes chambers of the callipers,” – explains Honens, going into nitty gritty of the topic.
“Then we have disc brakes on all four wheels and air operated callipers and activators. In-between there are quick release valves to make it a little bit faster and there’s a full circuit protection valve like in the standard road-going units to separate the circuits from each other. In case of a leakage at least you have one active axle for braking,” – he carries on.
Immense forces applied on the brakes cause them to overheat tremendously, hence water cooling is a necessity. “We carry about 200 litres of water in what from the outside looks like air tanks, so we use about 200 litres of water in half an hour [race],” – says Honens.
“We have brake disc temperature sensors, which the driver gets monitored on the display and we have a regulator valve that controls the water flow, so depending on the temperature he sees on his display, he adjusts the water flow to the brake discs, which is sprayed through the sprayers to the air vents on the disc to keep them in the certain window, depending what brake pads we use,” – continues Honens.
“There are different philosophies up and down the paddock. There are trucks out there that have constant flow, there are trucks that have nozzles connected to the brake pedal, so as soon as drivers hits the pedal, the water comes and there are other ones with time relay – five seconds spraying and five seconds off, something like that,” – explained Honens.
If you wonder which circuit on the FIA ETRC calendar is the hardest one for the brakes, Honens has the answer for you. “Zolder” – he says without a moment of hesitation. “It has always been hard on brakes. [At Zolder] it’s always acceleration, decelerations. There’s a lot of tight corners, chicanes and that many fast corners,” he says of the Belgian venue. On the contrary Le Mans is the one that’s most gentle on the brakes.
Interestingly, circuits with long straights are not necessarily ideal for trucks.
“The problem with trucks is when you have a long straight it becomes cold and then you have a hard braking it becomes hot again, that puts brakes under a lot of stress,” – concludes Honens.
XAVIER MARTIN: TRUCK RACING IS MY SECOND FAMILY
How truck racing became his passion and the true #onetruckfamily spirit in the ETRC paddock
BRERETON RETURNS TO TOP STEP OF OVERALL PODIUM
Having started on reverse pole, Shane Brereton drove spectacularly to take the overall win ahead of Téo Calvet and Sascha Lenz.
KISS CROWNED 2022 CHAMPION
With five races in hand, Norbert Kiss took the win in the penultimate Le Mans Bugatti race to be crowned the 2022 Drivers’ Champion.
MATCH POINT FOR KISS AS HE TAKES CLEAN SWEAP OF POLES IN LE MANS
With the possibility to wrap up the Drivers’ Championship in Race Three, Norbert Kiss is showing the pressure isn’t getting to him, taking a clean sweep of poles at the Le Mans Bugatti Circuit.
CALVET VICTORIOUS IN FRONT OF HOME CROWD
With the grandstands verging on full, Téo Calvet gave his home supporters something to cheer about taking double victory in the second race of the Le Mans weekend.
HAHN DENIES EARLY CHAMPIONSHIP WIN DESPITE KISS VICTORY
In terms of winning the championship early, Norbert Kiss did everything he needed to, winning Race One, but Jochen Hahn’s fourth place confirmed the title won’t be decided today.
12TH POLE FOR KISS BRINGS HIM ONE STEP CLOSER TO 2022 CHAMPIONSHIP
Norbert Kiss will start the first race of the Le Mans Bugatti weekend from pole position, bringing him one step closer to wrapping up the 2022 Drivers’ Championship.
Le Mans Preview: Who can catch Kiss
The penultimate round of the 2022 Goodyear FIA ETRC takes place at Le Mans this weekend.
KISS TAKES POLE IN WET ZOLDER QUALIFYING
For the tenth time this season, Norbert Kiss claimed the top spot for the opening race at Zolder
The Goodyear FIA ETRC moves on to Belgium this weekend for round six of the truck racing season.
PROMOTER’S CUP REVIEW MOST
Jamie Anderson returned to racing after the summer break with a bang, as he took two overall and two Promoter’s Cup wins last weekend at Most.
ANDERSON DOMINATES MOST DESPITE TURBO TROUBLES
Jamie Anderson has taken his fourth overall victory of the season and ninth Promoter’s Cup win in a dominant lights-to-flag display for the final race at Most.
KISS NARROWLY BEATS LENZ TO MOST POLE TWO
With one of the narrowest margins the Goodyear FIA ETRC has seen all season, Norbert Kiss just beat Sascha Lenz to pole for the second qualifying session at Autodrom Most.
ANDERSON VICTORIOUS IN LAST CORNER DIVE
Jamie Anderson had spectators on the edge of their seats for the last corner of Race Two, stealing a hard fought victory from Lukas Hahn.
KISS WINS DRAMATIC MOST RACE ONE
Extending his championship lead, Norbert Kiss conducted another lights-to-flag victory ahead of a dramatic race behind him.
KISS CONTINUES POLE RUN IN RECORD-BREAKING STYLE
Norbert Kiss has taken pole position ahead of the first race at Autodrom Most, breaking the lap time record set in 2009.
Q&A with Sven Walter on #onetruckfamily
Read what Sven Walter has to say about the #onetruckfamily
Promoter's Cup review Nürburgring
After a tough few races, Téo Calvet turned around his campaign last weekend, and put himself back into the hunt for the Promoter's Cup title.
ANDERSON TAKES SECOND OVERALL WIN IN SPECTACULAR COMEBACK
For the final race around the Nürburgring, Jamie Anderson finished his turbulent weekend on a high, securing his second overall career victory.
SECOND HAHN VICTORY AT THE NÜRBURGRING
Repeating the lights to flag feat his son achieved yesterday, Jochen Hahn took the win in the first race on Sunday.
JOCHEN HAHN TAKES FIRST 2022 POLE AMID KISS BLACK SMOKE ISSUES
Jochen Hahn has continued the winning streak started by his son Lukas Hahn yesterday, taking his first pole position of the season for Race Three of his home event.
LUKAS HAHN TAKES MAIDEN WIN IN FRONT OF HOME CROWD
Lukas Hahn had a flawless second race at the Nürburgring, taking his maiden Goodyear FIA ETRC victory in front of his home crowd.
VICTORIOUS KISS ON NÜRBURGRING RETURN
Following his pattern from the season, Norbert Kiss has converted his pole position into a win for Race One in dominant style.
KISS STRIKES AGAIN FOR SEVENTH POLE
Continuing to be unbeatable over one lap, Norbert Kiss has taken his seventh pole of the season.
ETRC GRID READY TO ROCK THE RING
Truck racing action returns to the Nürburgring for the ADAC Truck Grand Prix this weekend
INNOVATION CAMP TRUCK TALK
Iveco, Mercedes and DAF talk about the challenges of bringing alternatively powered trucks to the market
Promoter’s Cup Review Slovakia Ring
It was a clean sweep in the Promoter’s Cup at the Slovakia Ring, as British racer Jamie Anderson took four category wins and topped his weekend off by claiming his first overall race victory.
THREE OUT OF FOUR FOR KISS IN SLOVAKIA
Norbert Kiss has repeated his Hungaroring performance, taking three of the four race victories on offer during the Slovakia Ring event.
Lights-to-flag win for Kiss in Race 3
Converting another pole position to race victory, Norbert Kiss has claimed his 70th Goodyear FIA ETRC victory.
Kiss nets sixth pole of the season
Norbert Kiss has kept up his qualifying dominance by taking another pole position ahead of the third race at the Slovakia Ring.
ANDERSON DEFIES KISS FOR INAUGURAL OVERALL WIN
The dust was flying in the second race at the Slovakia Ring as Jamie Anderson defended hard to hold onto reverse pole claiming his first Goodyear FIA ETRC overall victory.
KISS TAKES WIN IN RACE 1 AT THE SLOVAKIA RING
In another dominant display, Norbert Kiss has added another win to his name in 2022, extending his championship lead over Sascha Lenz and Jochen Hahn.
KISS DOES IT AGAIN TO TAKE FIRST SLOVAKIAN POLE
Remaining the only driver of 2022 to take pole position from a qualifying session, Norbert Kiss will start the first Slovakia Ring race from the front of the grid.
2023 Technical Regulations to allow all-electric and hybrid powertrains in the ETRC
The way is paved for alternative powertrains to join the truck racing grid.
SLOVAKIA RING PREVIEW
After a two year break, the Goodyear FIA ETRC returns to the Slovakia Ring for round three of the 2022 championship.
Promoter’s Cup review Hungary
The battle in the Promoter’s Cup is heating up, as Shane Brereton takes over the lead in the standings with a double win in Budapest.
HOME HAT-TRICK FOR KISS
In a disappointing end to the weekend for Téo Calvet, that saw him retiring from the lead of the race, Norbert Kiss claimed a hat-trick of victories at his home event.
DOUBLE DOMINATION FOR KISS IN HUNGARY
For the second day in a row, Norbert Kiss has converted his pole position to race victory at the Hungaroring.
39TH POLE FOR KISS FOR HUNGARORING RACE THREE
Norbert Kiss has continued his run of scoring every pole position in 2022, taking qualifying two in his usual dominant fashion.
LACKO TAKES FIRST WIN OF SEASON AFTER RED FLAG CHAOS
Adam Lacko took his first win of the season in a red flag restarted second Hungarian race.
HOMETOWN HERO KISS DOMINATES RACE 1
Bringing home the first victory of the weekend and converting his pole from yesterday, Norbert Kiss was in a league of his own. Crossing the line 9.3 seconds ahead of the rest of the grid, his win was never in question nor under threat.
KISS TAKES POLE AT HOME EVENT
After having dominated the free practice sessions on Friday, Norbert Kiss stayed on top for qualifying, taking pole position for the first race of his home event.
Fans can expect a Super Racing Festival of Motorsport, as the truck racing grid is joined by the FIA World Touring Car Cup and the FIA eTouring Car World Cup at the Hungaroring this weekend.
Promoter’s Cup review Misano
French driver Téo Calvet took three victories in the first round of the season, while his closest competitor Shane Brereton prevented him from taking a clean sweep.
LENZ BECOMES THIRD WINNER OF 2022
Having featured on every podium this weekend, Sascha Lenz ended the Misano weekend in the best way, taking his first win of the season.
KISS ON TOP AGAIN IN MISANO
It was another made to look easy race victory for Norbert Kiss, who has extended his championship lead after race 3.
DOUBLE MISANO POLE FOR KISS
Racing in a class of his own, Norbert Kiss took pole position for the third race at Misano World Circuit with a comfortable four-tenth advantage.
ALBACETE TAKES FIRST WIN SINCE 2019
Antonio Albacete took the second victory of the weekend at Misano World Circuit after passing René Reinert for the lead of the race at the halfway point.
UNSTOPPABLE KISS TAKES 64TH VICTORY
With a text book lights to flag win, Norbert Kiss took the first win of the 2022 season at the Misano World Circuit.
FIRST POLE OF 2022 TAKEN BY KISS
Picking right back up from where he left off in 2021, Norbert Kiss has put his Révész Racing truck on pole for the first race of the season.
The Goodyear FIA ETRC is back in action this weekend, as the new season kicks off in Misano, Italy on 21/22 May with fans returning to the track.
GOODYEAR RETREADS RACING TYRES FOR ON-ROAD USE
Casings from used racing tyres will be given a second life and used for on-road retreading
GOODYEAR FIA ETRC INNOVATION CAMP
New area showcases sustainable transport solutions from different manufacturers
2022 fia etrc entries open
Entry period for this year’s FIA European Truck Racing Championship season has opened today, with competitors willing to take part in the full campaign accepted until Friday, April 22