Engine war – Bajaj vs TVS

Bajaj to sue TVS


Bajaj DTSi (vs) TVS CC-VTi

Bajaj Auto Ltd is planning to sue its rival TVS Motor Co for “infringing” upon intellectual property rights(IPR) of its patented digital twin spark ignition (DTSi) technology. Bajaj Auto’s move to sue TVS comes two days after TVS unveiled its latest 125 cc bike ‘Flame’ with Controlled Combustion Variable Timing Intelligent (CC-VTi) technology. TVS had claimed that its 125cc ‘Flame’ is powered by an engine with CC-VTi technology, which features two different intake ports called swirl port and power port. TVS earlier used VTi(Variable Timing Ignition) engine for its economic bike ‘centra’. Bajaj Auto claims that the TVS has used its digital twin spark ignition technology (DTSi) in recent TVS models including the 125 cc bike, Flame.

“This is a case of IPR infringement issue. Prima facie we have a strong case. While we have had Chinese companies infringing our patented technology, this is the first time a fellow Indian company is doing it to us,” Bajaj Auto Ltd (BAL) CEO (Two-Wheelers) S Sridhar said. He also said, “We are shocked to see TVS using our patented technology for its 125cc Flame motorcycle.”

He said the company was convinced that there was a clear case of IPR violation by TVS on three counts and the company’s legal department was preparing to go to court at the earliest. “The first is the purpose for which they are doing it (use of twin spark ignition for enhanced performance and better mileage). Secondly, the size (of engine) is same and third, construction of engine is also the same,” Sridhar added. Mr Nandi Bajaj auto Marketing manager said that the new bike’s spark plugs were similar to those present in Bajaj’s DTSi bikes (two spark plugs located at opposite ends of the combustion chamber). Bajaj contends that TVS Motor’s 125 cc motor cycle also has spark plugs located at opposite ends of the compression chamber. Since location is the key to fuel efficiency and emission control, the design of TVS Motor’s vehicle infringes on their proprietary know-how.

Sridhar said the company’s lawyers were looking into the matter and would decide on the next course of action. “We will not let the bike (Flame) go under production with that engine”, he added.

This would be the second time in a year that Bajaj Auto would be taking legal action over infringement of its trademark rights. Early in February, Bajaj auto major took legal action against Chinese bike makers Taian Chiran Machinery Company, which had cloned its flagship Pulsar bike.
Although the twin spark plug system is not the first in the world, as bike makers such as Ducati had been using the same technology (twin spark plugs) on bigger engine capacity bikes (800cc-1000cc), Bajaj claims to be the first company to have used the same technology on smaller engine capacity bikes (150cc-220cc).

Bajaj holds the Indian patent for its DTSi(Digital Twin Spark ignition engine) which it uses for the pulsar’s, discover’s and scotter kristal. Recently, Bajaj unveiled its new engine DTS-Si(Digital Twin Spark Swirl Induction) and plans a new bike called eXceed for this engine. TVS 125 cc motor cycle ‘Flame’ is in direct competition with Bajaj’s Discover motorcycle and the upcoming new Exceed model.

TVS has not made any statement on this issue.

update 1: TVS replied to the charges

TVS Motors denied the charge. “TVS has not infringed on anyone’s technology. It’s our own technology developed by years of research at our Hosur facility,” said TVS Motors spokesperson Cecil K Dewars.

Senior executives of TVS Motors said that the company has been spending about 3% of its total sales, or about Rs 50 crore, on R&D, which ”resulted in the development of the new engine.”

“A substantial investment on R&D in the past three to four years has led to the creation of the 3-valve engine,” said an executive, adding that “the Controlled Combustion Variable Timing Intelligent technology (CC-VTi), has also been introduced in our new 125-cc bike Flame. It has been developed in collaboration with AVL Austria and there is no question of any imitation.”

Prasad Narsimhan, senior vice-president (marketing), TVS Motors, said, “A bike can have two spark plugs… it’s nothing unusual. We have also incorporated three valves on the same engine, which is the first of its kind in India. Bajaj Auto is free to do what it wants.”

Mr Venu Srinivasan, Chairman and Managing Director, TVS Motor Company, said that TVS was a “principled company” and would not do anything unethical. “We believe we have not violated anybody’s property,” he said, adding that the company could defend itself in the courts, if necessary.

update 2: TVS hits back

TVS Motor Company plans to counter the Bajaj Auto by filing a suit against the Bajaj Auto if the latter does not withdraw its allegations that TVS infringed on Bajaj’s proprietary know-how. “We have been advised to initiate action for libel against Bajaj Auto Ltd and we in turn have advised our lawyers to put Bajaj Auto Ltd on notice that unless the malicious allegations are withdrawn and regrets expressed, TVS would file a suit for damages in a sum of Rs 250 crore,” says a company release.

“The allegation of Bajaj Auto is ridiculous and can be established by their own admission that the invention in issue – the application of twin spark plug is a known technology used extensively all over the world for decades and therefore, in patent law, it is a known prior art,” it says.

21 thoughts on “Engine war – Bajaj vs TVS”

  1. Biggest joke of the century. Twin spark plug technology dates back to 1914 when it was first used in automobiles. http://en.wikipedia.org/wiki/Twin_Spark All international companies have been using the technology in different configurations for years. If Bajaj can sue TVS for tech infringement, then all the international companies can sue bajaj for copying twin spark.

  2. I wonder when and how Bajaj got the patent for Twin-spark.. no patent number anywhere. Bajaj only claims that they are in the process of obtaining the patent. Now let’s see on what bases they sue TVS. twin spark bajaj patent&hl=en&ct=clnk&cd=5&gl=us

  3. Hmm.. no company will file a case without a valid patent, or else they will be screwed themselves. I am sure Bajaj will not put such a case for nothing.. The patent means the rights to release a technology in the country.. which Bajaj holds for our country.

  4. Though most companies(including Bajaj) are dubious for pilfering tech abroad , TVS motors has been in the forefront.What suprises me is the reason for Bajaj is suing TVS , Its merely a case of pot calling the kettle black

  5. Washing dirty linen in public ??? Neither of the companies have exhibited the Patent No., Country of filing, Text along with drawings on their websites or indicating the number of patents each of the companies hold on their respective websites. There is nothing new about twin plug or their locations or multiple valves located in small four stroke air cooled heads over the years. There is nothing new in either of the designs that could be claimed as a new idea ??? Nor have they reinvented the IC engine in anyway. It is just a gimmick to get public attention. The China man will beat them at this game of money making in time to come …….. i wonder how would both these machines compare with the European brands of the same capacity ??? There is a long way before any Indian company fields a 125cc bike in world class GP racing ! Flamefront

  6. I think TVS is relying on a Three-Valve, Twin-Spark-Plug SI Engine as mentioned in the SAE Technical Papers submitted by two students from Brubnei University. It seems they have fine-tuned this technology and incorporated AVL’s CCBR technology for lean-burn engine. I am sure it will provide good fuel economy, an extended cruising range, good reliability and easy maintenance. I have pasted links and various rsearch papers to clear all your doubts. https://shop.sae.org/technical/papers/2003-01-0635 SAE Technical Papers Title: Optimization of In-Cylinder Flow for Fuel Stratification in a Three-Valve, Twin-Spark-Plug SI Engine Document Number: 2003-01-0635 Author(s): Yufeng Li – Brunel Univ. Hua Zhao – Brunel Univ. Abstract: In-cylinder flow was optimized in a three-valve, twin- spark-plug SI engine in order to obtain good two-zone fuel fraction stratification in the cylinder by means of tumble flow. First, the in-cylinder flow field of the original intake system was measured by Particle Image Velocimetry (PIV). The results showed that the original intake system did not produce large-scale, in-cylinder flow and the velocity value was very low. Therefore, some modifications were applied to the intake system in order to generate the required tumble flow. The modified systems were then tested on a steady flow rig. The results showed that the method of shrouding the lower part of the intake valves could produce rather higher tumble flow with less loss of the flow coefficient than other methods. The optimized intake system was then consisted of two shroud plates on the intake valves with 120\mD angles and 10 mm height. The in-cylinder flow of the optimized intake system was investigated by PIV measurements. Mean velocity distribution, tumble intensity and center and their cyclic variations, as well as the velocity fluctuation were analyzed. The PIV results showed that the optimized intake system provided strong tumble motion, very low velocity component in the direction of the tumble rotational axis, less but still obvious cyclic variations of tumble ratio and tumble center, very high fluctuation kinetic energy especially near the end of the compression stroke. These flow features would no doubt be beneficial to fuel fraction stratification and the subsequent combustion process. https://shop.sae.org/technical/papers/2005-26-008 SAE Technical Papers Title: Digital Twin Spark Ignition for Improved Fuel Economy and Emissions on Four-Stroke Engines Document Number: 2005-26-008 Author(s): A. Ramtilak – Bajaj Auto Ltd. A. Joseph – Bajaj Auto Ltd. G. Sivakumar – Bajaj Auto Ltd. S. S. Bhat – Bajaj Auto Ltd. Abstract: The Digital Twin Spark Ignition (DTS-i) is a concept developed specifically for small-bore, four-stroke engines with two valves. Two spark plugs placed diametrically opposite to each other in the combustion chamber fire simultaneously igniting the charge. The benefit of this concept is improved fuel economy, better driveability, and reduced engine emissions. The concept has been successfully launched on two products namely 150 DTS-i and 180 DTS-i engines. The DTS-i concept helps the products meet the India 2005 emission standard without the use of secondary air injection and exhaust aftertreatment. The DTS-i concept allows the compression ratio of the engine to be increased from 9.65 to 9.85. At part-load conditions (Indian Driving cycle) the DTS-i technology allows the engine to run leaner at a lambda of 1.2 with excellent stability. On a bore size of 57 mm (150 DTS-i) the maximum flame travel length was reduced by 18%. The power, torque and specific output per liter were increased, while the fuel consumption and emissions were reduced due to the rapid combustion brought about by the twin spark plugs. This paper discusses the test results of the 150 DTS-i engine. The cylinder pressure was measured at full load and part load to see the effects of the DTS-i on burn duration, cyclic variation of IMEP, and peak pressure. The engine was run on a dynamometer to simulate road load at 30, 40 and 50 km/h constant speed. The emission and fuel consumption values for the Indian Driving Cycle (IDC) of the DTS-i engine are discussed. http://www.avl.com/wo/webobsession.servlet.go/encoded/YXBwPWJjbXMmcGFnZT12aWV3Jm1hc2s9dmlldyZub2RldGl0bGVpZD01NzM4Nw_3D_3D.html Areas of Application Originally CCBR was developed to provide a technology which ensures a very good fuel consumption at the lowest possible cost. Target markets were the South – East Asian countries where fuel consumption and cost are the key selling arguments. But in principle CCBR can be applied to every 4 – stroke engine with two intake valves. For application of CCBR the following major design modifications are required: new intake ports and combustion chamber new intake manifold CCBR carburettor adaptation of intake system to new carburettor for 3 valve engines twin spark is recommended Beside the above mentioned potential to reduce the cost of operation via a good fuel economy, a fuel efficient vehicle provides also an extended cruising range with the same fuel tank capacity which makes CCBR an interesting concept for ATVs or vehicles with limited tank capacity. Furthermore a carburettor ensures a good reliability and easy maintenance which is important for trail riding. For motorcycles with a moderate power output and a displacement below 150 cc CCBR is a cost attractive solution to comply with Euro III (boundary conditions see previous page) emission legislation. The Figures on the right give an overview of the combustion chambers applied and vehicles for possible CCBR application.

  7. hey!!! actually bajaj are doing a rite job by striking a case against TVS.actually TVS copies the same which BAJAJ does 4 their flagship pulsar i.e, when bajaj introduced digital speedometer,LED taillamps,rear disc(220 dts-fi).. TVS introduced all that features in their new apache RTR 160 n news r also heard dat TVs has introduced rear disc to apache 160 RTR efi model… thus anyone can find out who the culprit is.

  8. hey, bajaj is doing the right thing . i hate tvs ,it has apache with a very bad engine they are doing the copy. tvs are the copy cats

  9. Yeah right! Apache has a bad engine,b’coz its the quicker,faster,and refined than our Pulsar.How could it beat our own pulsar even in looks? That cannot be possible. Even our Bajaj Kristal was better than Pep but where is it now? Bajaj have a big range of motorcycles Pulsar family,Discover family, oh i forgot Platina family.All other manufacturers WASTE their money in race(TVS,Honda,Suzuki,Yamaha),but our Bajaj carefully uses that money in Ads.They even save their money by not wasting into useless stuff like R&D. Thats why all their bikes resemble either our favorite Pulsar our beloved Kawasaki Caliber. Wow what a great job by Bajaj guys hats off.What these TVS guys are doing? How can you compare TVS with Bajaj?So you call TVS a better company?They might have a Star which is the best looking 100cc,or Pep the princess of scootrettes,or Apache leader of 150cc segment.Even though they might be the Naional Champions in racing for God knows how many years,they cannot compete Bajaj in Ads!!!Bajaj is a great company. It manages to sell defective pulsars or the skinny disco-like XCD or the puny platina better than anybody else.That is the power of Bajaj!!!Hey TVS you may make better bikes with superior technology than Bajaj,you cannot beat it.DISTINCTLY AHEAD!!!!!!!!!!!

  10. TVS Motor Company has filed a Rs 250 crore defamation suit against Bajaj Auto in the Bombay High Court.This is in reaction to Bajaj’s allegation that TVS had infringed the latter’s patented DTSi (digital twin spark plug ignition) technology.Shiraz Patodia of Dua Associates, the law firm which represents TVS Motor, confirmed on Thursday that the defamation suit has been filed earlier this week in the HC.“The suit pertains to Bajaj Auto’s allegations regarding infringement of its patented engine technology by TVS Motor,” Patodia told from her Delhi office.“The total amount we are claiming as damages is Rs 250 crore,” she added. The suit will come up for hearing in due course.Sparks literally flew when TVS Motor announced its intent to launch the 125cc Flame (due in December), which Bajaj implied was an infringement of its own twin spark technology. source:DNA india

  11. I feel that Bajaj should lease their DTSi and DTS Si technology to other manufacturers for a small fee and forget about the whole thing. After all if something is good for the gander it should be good for the geese as well. Have a big heart and let the motorcyclist tribe increase. We need better motorcycles, not better lawsuits !

  12. I am with Bajaj here. I think Bajaj have long reputation in R&D segment. If a company is investing millions of rs in research for making something better & if if someone is just copying it with little enhancement .. its harm to companys interest to gain profit from doing invention. Although the twin spark plug technology is not quite new in international market but bajaj claims that it holds patent to introduce in bikes of 125 to 250 CC range where other companys have used in more than 500 CC range which have diffrant engine technology itself. The case is due to similar engine type, similar engine capacity, silar twin spark plug position (the spark plug postion in engine is key point in engine efficiency). It looks a copy of Bajajs well known & market dominant DTSI technology which no other bike in India is having. I know that Bajaj will not make any such statement with out holding a patent as they claim on their site also that the DTSI technology is patented. International companys cant sue Bajaj as the patent application must have been accepted by US patent office & it grants the patent after review that its not harming the interest of other companys in the same interest & they differ significantly in technology & implementation. I think Bajaj holds good chances to win the case as they look strong .. in this issue … Any way whoever wins .. the case seems interesting & I think first of its kind in Indian Auto industry .. Best luck from me to Bajaj Auto Ltd. 🙂

  13. Hi, My foot, bajaj and r&d. Bajaj like any other marwadi company survived by fiddling around the indian politicans and was selling a good for nothing scooter at premium till the market opened up. Where as tvs has been always a law abiding company. It had the guts to kick out suzuki and launch of its own. on the basis of reading the details, i feel bajaj once again is fiddling around the legal system of india. As mentioned in the mail, nobody has made details of the application nor the patent number.

  14. I feel bad for bajaj stopping tvs release a good fuel efficient bike.. technology is to be answered back by technology but not by court.. I hav one more point if every thing like spark technology is gonna be patented .. y then no one has patented for four stroke engine

  15. bajaj good for nothing… pulsars hav bcum like a taxi in mumbai thats premier padmani…. n D SO CALLED AVENGERS stupid bike feel like god….. hw stupid can those bajaj people gt huh sick people…. i just hate bajaj BIKES. At least tvs had guts to kick d suzukis out…. but the bajajs no colaboration… good for nothing…. bajaj train mey jake bajao.

  16. bajaj good for nothing… pulsars hav bcum like a taxi in mumbai thats premier padmani…. n D SO CALLED AVENGERS stupid bike feel like god….. hw stupid can those bajaj people gt huh sick people…. i just hate bajaj BIKES. At least tvs had guts to kick d suzukis out…. but the bajajs no colaboration… good for nothing…. bajaj train mey jake bajao. any time TVS is the best!!!

  17. hi, i’m from Indonesia, both Bajaj & TVS sell their products in my country. Both bike is good and fine and advanced technology, for people in indonesia, especialy sport bike, such as Bajaj Pulsar and TVS Apache are new option for indonesian customers, many customers pich these products. i have not yet try both of this bike, so i cannot give detailed comment, but TVS Apache 160 Fi seems nice and cool :D, but not yet available in Indonesia. i’m currently using Honda CBX 200 called “Honda Tiger 2000” in my country. but TVS Apache 160 Fi seem very cool, i have not yet seen the Bajaj with Fuel Injection technology.. ok, well, just wanna say welcome to Indonesia for your automotive products. Greting from Indonesia. 🙂 Keep up the good works..

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