Mercedes-Benz PU106A Hybrid
Mercedes-Benz PU106A Hybrid is the name of a racing engine from the manufacturer Mercedes AMG High Performance Powertrains for the hybrid era of Formula 1 . It was first used in the 2014 season . Later stages of expansion were given different names each season. The engine was designed under the direction of the managing director of Mercedes AMG HPP, Andy Cowell, as well as the technical director of the Mercedes works team at the time , Bob Bell . Development began when the new rules were announced in mid-2011 and is believed to have devoured an estimated £ 100m in development costs . In 2014, the engine in the Mercedes F1 W05 Hybrid won both the Drivers 'World Championship (Lewis Hamilton) and the Constructors' World Championship (Mercedes).
Technology and development
Large parts of the engine design were determined by the Formula 1 regulations. As of the 2014 season, only V6 petrol engines with 1.6 liter displacement, four valves per cylinder and a cylinder bank angle of 90 ° were allowed to be used. The charging had to be done by only one turbocharger , the boost pressure was allowed to be a maximum of 3.5 bar. The speed was limited to 15,000 revolutions per minute, as was the maximum fuel flow of 100 kg per hour.
In contrast to the engines of the Renault and Ferrari competitors , Mercedes placed the turbine in the usual position behind the combustion engine, but placed the compressor directly in front of the engine. This was close to the airbox , the air inlet above the cockpit. This achieved direct air cooling of the compressor and the space requirement for water coolers in the side pods was reduced. As a result, the side pods on vehicles with Mercedes engines could be made smaller and significantly more aerodynamic.
According to the chairman of the Mercedes team, Niki Lauda , the engine's output was around 426 kW (580 hp). However, this information appears very cautious in view of later performance and the information provided by competitors. In addition to the combustion engine, the hybrid engine unit also had an energy recovery system (ERS-H) , which used waste heat from the engine via the turbocharger to generate energy and, just like the electromotive brake on the rear axle, charged the batteries. The power was delivered to a 120 kW (163 hp) electric motor . The performance of the combustion engine was clearly exceeded in later expansion stages. At the beginning of 2018, Andy Cowell spoke of a system output of almost 1000 hp, including the batteries.
The Power Unit was developed at Mercedes since 2011 under project manager Geoff Willis, together with the racing car in which it was to be used in 2014, the Mercedes F1 W05 Hybrid . As a result, there were hardly any problems with the integration of the engine in the car compared to many competitors in the first season.
| Technical details (2014) | |||||||||||||
| Data designation | description | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weight | Engine: min. 145 kg including battery (20-25 kg) | ||||||||||||
| turbocharger | Single turbocharger with 3.5 bar boost pressure | ||||||||||||
| Valves | 4 per cylinder | ||||||||||||
| cylinder | 90 ° V6 | ||||||||||||
| drilling | |||||||||||||
| Piston stroke | |||||||||||||
| Displacement | 1.6 liters | ||||||||||||
| rotational speed | Max. 15,000 rpm | ||||||||||||
| Fuel pass | Max. 100 kg / hour over 10,500 / min | ||||||||||||
| Exhaust | an outlet pipe | ||||||||||||
| Energy recovery |
Energy Recovery System output 120 kW (163 PS) |
||||||||||||
| power | Power: ≥ 426 kW (580 PS) | ||||||||||||
Expansion stages
Mercedes-Benz PU106A Hybrid was the official name of the engine in the 2014 premiere season. In the following seasons, the further expansion stages of the engine were given new names. Formally, however, all of the expansion forms were based on the basic structure that had existed since 2014. A new engine was not developed every year either; rather, development was an ongoing process during the season.
Status: end of season 2019
| season | run | designation | Victories | Poles | Teams |
|---|---|---|---|---|---|
| 2014 | 19th | Mercedes-Benz PU106A Hybrid | 16 | 19th |
Mercedes McLaren Williams Force India |
| 2015 | 19th | Mercedes-Benz PU106B Hybrid | 16 | 18th | Mercedes Williams Force India Lotus |
| 2016 | 21st | Mercedes-Benz PU106C Hybrid | 19th | 20th | Mercedes Williams Force India Manor |
| 2017 | 20th | Mercedes-AMG M08 EQ Power + | 12 | 15th | Mercedes Williams Force India |
| 2018 | 21st | Mercedes-AMG M09 EQ Power + | 11 | 13 | Mercedes Williams Force India |
| 2019 | 21st | Mercedes-AMG M10 EQ Power + | 15th | 10 | Mercedes Williams Racing Point |
In the years 2014 to 2019, both the drivers 'and the constructors' world championships could be won with the respective expansion stages of the PU106A Hybrid. During this period, the Mercedes works team won 89 of the 121 Grand Prix started with the engine and started from pole position in 95 of the 121 races.
use
The engine, which was considered the most powerful propulsion unit in Formula 1 in the 2014 season, was used by Force India , McLaren , Mercedes and Williams in 2014 . These teams finished first, third, fifth and sixth in the Constructors' World Championship at the end of the season. Lotus and Manor were also customers later . In the 2019 season , Racing Point and Williams will drive the engine alongside the works team .
See also
- Mercedes AMG High Performance Powertrains , Mercedes-Benz as engine supplier in Formula 1
- Mercedes AMG F1 Team , Mercedes-Benz works team in Formula 1
Web links
Individual evidence
- ↑ "New engines for Formula 1 in 2016?" Racecar-engineering.com, November 24, 2014, accessed on December 4, 2014 .
- ↑ racecar-engineering.com Mercedes W05 (accessed April 8, 2014)
- ↑ Christian Nimmervoll, Dieter Rencken: “Turbo trick: Remove copper from Mercedes from Mercedes?” Motorsport-Total.com, November 28, 2014, accessed on November 28, 2014 .
- ↑ a b According to Niki Lauda. See [1]
- ↑ Renault Energy F1-2014: Vettel's new accelerator. (No longer available online.) Auto-motor-info.de, June 21, 2013, archived from the original on December 30, 2013 ; Retrieved June 30, 2013 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Matthias Brunner: Mercedes technician: What makes the Silver Arrow so good. Speedweek.com, February 23, 2017, accessed February 23, 2019 .
- ↑ Michael Schmidt: 250 million for two titles. In: auto-motor-und-sport.de. December 8, 2014, accessed February 18, 2019 .
- ↑ In contrast to Renault , Mercedes is said to have tested the entire unit on the test bench and thus " tested the interaction between the engine and energy recovery systems and the software." See RP-Online
- ↑ According to Niki Lauda , the technical advantage lies in the electrical unit. See [2] .
