The 2010 BMW S1000RR a STATE of the ART BIKE Photos: BMW Motorrad & Erik Landrum
Total Page:16
File Type:pdf, Size:1020Kb
the 2010 BMW s1000RR a STATE Of THE ART BiKe Photos: BMW Motorrad & Erik Landrum “Well, what do you think?” asked the BMW engineer before i’d even removed up product competing against well my helmet. i remove my helmet to reveal a foolish grin from ear to ear, “i feel entrenched competition with years of like i’m getting away with murder out there.” experience. They’ve reached their goal “What do you mean?” he inquires. with the new 2010 BMW S1000RR. “i’m riding so sloppy out there” ... jet lag i suppose, “that if i had to put a number on it, i’d say i should have crashed at least 10 times by now.” Forgiving This is not a term used to describe contemporary 1000cc super sport The engineer looked puzzled and concerned. “Is there something machinery. Anyone with time in the saddle of one of these bikes wrong with the motorcycle?” will agree. Slip up, and it will bite you. The arms race for the “Are you kidding? So far it’s done everything in the world to save lightest, fastest, sharpest handling and hardest stopping equip- me from myself” I reply. ment hasn’t yielded forgiving, easy to ride motorcycles. The conversation continued as I described in detail what on The S1000RR is forgiving. Through all of my mistakes riding earth it was that I was blathering on about. Woops, that should the very technical Portimao circuit in Portugal, I kept shaking my have been a high side, low side, nasty headshake, tank slap, locked head in disbelief that I was still upright. As someone once said, brake, flipped over backwards/forwards yard sale. I went on to power is nothing without control. Dynamic Traction Control explain my amazement that this bike was actually helping me (DTC) and Race ABS deserve the credit. Both systems allow the with my mistakes instead of punishing me for them like other rider to either preselect one of four different modes of operation 1000cc super sports bikes. or change modes while underway by pressing the mode button The look on the engineer’s face became like that of a proud par- on the right handle bar. After the mode has been chosen, it takes ent. In fact, you could sense the feeling of pride and accomplish- one minute to confirm it by pulling the clutch lever and closing ment from every member of the development team. the throttle. The information display on the multi-function BMW Motorrad has built the state-of- screen will then confirm the current set- the-art liter class super sport bike. This ting. The last mode chosen is always isn’t supposed to happen when a manufac- By ERIK LANDRUM retained when restarting the motorcycle. turer creates an all new from the ground #107532 The four modes of operation for both the 50 BMW OWNERS NEWS January 2010 January 2010 BMW OWNERS NEWS 51 DTC and Race ABS are Rain, Sport, Race, and Slick. Rain is obvi- ously for wet conditions. The sport setting is for regular road con- ditions. Race is for a race track with DOT race tires fitted. Slick is for the race track with slicks fitted. Both systems can be deacti- vated separately from one another. dynaMic tractiOn cOntrOl (OPtiOnal) The DTC system utilizes a gyroscope (that’s right) under the front seat section working together with the ABS wheel speed sensors. The gyroscope works on a vertical axis (to detect wheelies) and a horizontal axis (to detect lean angle). The ABS wheel speed sensors detect if the rear wheel is accelerating faster than the front. Once activated, and depending on the mode of operation, if the system detects front wheel lift or rear wheel spin up, a signal is sent to the engine management system. The engine management system pro- ceeds to first close the throttle butterflies. Then, if necessary, inter- rupts fuel injection and ignition. The modes operate as follows: • Rain mode- maximum lean angle for acceleration = approx. 38 degrees, no wheelie allowed* • Sport mode- maximum lean angle for acceleration = approx. 45 degrees, no wheelie allowed* • Race mode- maximum lean angle for acceleration = approx. 48 degrees, no wheelie allowed* • Slick mode- maximum lean angle for acceleration = approx. 53 degrees • Leaning angle more than 23 degrees / no wheelie allowed* • Leaning angle less than 23 degrees/wheelie allowed (DTC off for 5 seconds) * depending upon acceleration and road conditions, the front wheel will still lift for varying, limited periods of time and at dif- fering heights. A note from the lawyers: Although DTC/Dynamic Traction Control offers the rider valuable support and therefore represents a very sig- nificant safety factor when accelerating, it is obviously not able—just like Race ABS—to re-define, let alone change, the limits and laws of riding physics. In other words, the rider may still exceed these limits on account of misjudgment or a riding error, which in an extreme case may lead to an accident. e-gas The fuel injection mapping on the new S1000RR is flawless without the slightest hint of surging or hesitation detected. The 48 millime- ter throttle butterflies are controlled by an E-gas or throttle by wire system. While operating in the Rain mode, maximum power output is reduced to 150hp. Throttle response feels like a complete half turn to full throttle. In Sport, Race, or Slick modes full power output of 193hp is available. The ride by wire system provides increasingly more direct throttle response from Sport mode to Race mode with Slick mode becoming a mere quarter turn throttle. The system comes with a safety mechanical link connecting the cable to the electronic control unit enabling the rider to close the throttle but- terfly under all conditions. race aBs (OPtiOnal) The Race ABS system, when active, operates as follows: • Rain mode- ABS on / integrated pressure buildup on / defined deceleration limit / ABS at rear, activated by foot on / rear wheel lift off detection on 52 BMW OWNERS NEWS January 2010 The 2010 BMW S1000RR Opposite Page: The S1000RR is the only super sport machine with DTC Dynamic Traction Control and Race ABS. Top: The author puts the machine through the turns at Portimao in Portugal. Bottom Right: Getting a closer look are BMW’s Roy Oliemuller , Kent Kunitsuga of Sport Rider magazine, Pieter de Waal of BMW Motorrad USA, and Josef Mächler the Product Manager of the BMW S1000RR . An interview with Pieter de Waal starts on page 46. January 2010 BMW OWNERS NEWS 53 The 2010 BMW • Sport mode- ABS on / integrated pressure buildup on / defined S1000RR deceleration limit / ABS at rear, activated by foot on / rear wheel lift off detection on • Race mode- ABS on / integrated pressure buildup on / decel- eration limit defined for increased performance / ABS at rear, activated by foot on / rear wheel lift off detection off • Slick mode- ABS on / integrated pressure buildup on / decel- eration limit defined for increased performance / ABS at rear, activated by foot off / rear wheel lift off detection off As soon as the rider pulls the handbrake lever, the pressure sensor integrated into the front- wheel control circuit switches on the brake light and the pump, the latter immediately delivering brake fluid through the open valve to the rear wheel circuit. The pressure set in the rear wheel circuit is measured by a second pressure sensor and is controlled according to the distribution of brake power required and the brake force generated by the rider. The third pressure sensor in the rear control circuit, finally, mea- sures the brake pressure activated by the rider’s foot. Use of a forth pressure sensor in the front wheel circuit allows further improvement and even finer control of front-wheel brake pressure compared with former BMW Integral ABS II, since the sys- tem is able to compare the actual level of pressure in the control and wheel circuits. As a result, there is now no need for the usual throttle blades, which serve to provide an optimum pressure point and allows perfect dosage of brake power. All pressure sensors are inte- grated in the pressure modulator and the overall configuration of the system with its integrated pressure sensors now also avoids the need for a brake light switch. The use of these four pressure sensors in conjunction with the rear wheel lift-off detector (remember that gyroscope) allows even better distinction than before between a bump on the road and the rear wheel locking. The S 1000 RR is the only super sport machine with DTC Dynamic Top: The brakes are provided by Traction Control and Race ABS. Brembo and did a fantastic job on the course. BRakeS Bottom: The dog-shift six-speed It took me two laps around the Portimao circuit to stop smashing is very compact and light. The my groin into the tank while braking braking. These brakes are individual gears are shifted by a strong. Brembo provides the hardware for the job. Up front is a light, composite steel shift radial master cylinder utilizing a ¾” master piston to push the juice cylinder and shift forks resting to a pair of radial-mounted four-piston calipers with 34 millimeter on three points. Typical of liter pistons. The front rotors are floating and measure 320 mm x 5mm. class sport bikes, first gear is The rear rotor is a 220mm x 5 mm affair. The brake lines are braided very tall here. I never missed a steel for maximum resistance to fading and high temperatures. The shift and the ratios are well brakes almost seemed to get stronger as the day progressed.