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Integrated Motor Assist

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138: 394: 130: 25: 237:, and reduces the frequency of brake hardware replacement. The acceleration boost is important as it allows the engine to be scaled down to a smaller but more fuel-efficient variant without rendering the vehicle unacceptably slow or weak. This smaller engine is the primary reason cars equipped with IMA get better highway mileage than their more conventional counterparts. 245:
Additionally, vehicles equipped with IMA can shut off their engine when the vehicle stops and use the electric motor to rapidly spin it back up when the driver releases the brake pedal (or in the manual transmission variant, when the shifter is placed into gear from neutral). They also have a
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conventional starter as a backup, making it the only production hybrid system which can operate with its high voltage electric system disabled, using only its engine like a traditional vehicle. However, since the IMA also acts as the vehicle's
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to capture some of the energy that would otherwise be lost as heat during braking and reuse that energy later to help accelerate the vehicle. This has three effects: it increases the rate of acceleration, reduces the work required of the
220:, the IMA has a less powerful motor/generator which allows the car to slow or stop its rate of deceleration to a lesser extent; it cannot operate without turning over the engine which is directly coupled to its electric motor. 200:, however, can activate the electric motor while the vehicle is coasting without turning on the internal combustion engine, though in contrast to 196:
In its first generation, IMA could not power the car on electricity alone, and could only use the motor to assist or start the engine. 2006
97: 496: 69: 46: 76: 83: 116: 65: 54: 50: 511: 501: 173: 217: 90: 177: 35: 39: 205: 8: 445: 439: 398: 229: 197: 433: 247: 463: 427: 250:, eventually the 12 volt accessory battery would require an external charge. 137: 409: 213: 165: 393: 506: 421: 209: 185: 169: 490: 415: 234: 181: 161: 451: 457: 405: 157: 129: 24: 481: 201: 153: 488: 184:, power generator, engine balancer, and assist 388: 53:. Unsourced material may be challenged and 482:Honda Official "Green Technology - Hybrid" 117:Learn how and when to remove this message 392: 136: 128: 223: 164:. It is a specific implementation of a 489: 160:technology, introduced in 1999 on the 51:adding citations to reliable sources 18: 13: 14: 523: 475: 497:Automotive technology tradenames 23: 253: 1: 470: 7: 240: 191: 10: 528: 389:List of vehicles using IMA 174:internal combustion engine 218:Global Hybrid Cooperation 148:(commonly abbreviated as 66:"Integrated Motor Assist" 141:Honda Insight IMA, 2009. 133:Honda Insight IMA, 1999. 146:Integrated Motor Assist 418:(1999-2006, 2010-2014) 401: 142: 134: 396: 140: 132: 16:Hybrid car technology 230:regenerative braking 224:Regenerative braking 206:Hybrid Synergy Drive 172:mounted between the 47:improve this article 446:Honda Accord Hybrid 452:Honda Freed Hybrid 440:Honda Civic Hybrid 436:Hybrid (2010-2015) 424:(2001 concept car) 402: 399:Honda Civic Hybrid 143: 135: 512:Hybrid powertrain 502:Engine technology 434:Honda Fit Shuttle 127: 126: 119: 101: 519: 464:Acura ILX Hybrid 428:Honda Fit Hybrid 122: 115: 111: 108: 102: 100: 59: 27: 19: 527: 526: 522: 521: 520: 518: 517: 516: 487: 486: 478: 473: 391: 256: 243: 226: 214:DaimlerChrysler 194: 166:parallel hybrid 123: 112: 106: 103: 60: 58: 44: 28: 17: 12: 11: 5: 525: 515: 514: 509: 504: 499: 485: 484: 477: 476:External links 474: 472: 469: 468: 467: 461: 455: 449: 443: 437: 431: 425: 422:Honda Dualnote 419: 413: 390: 387: 386: 385: 363: 333: 315: 293: 275: 255: 252: 242: 239: 225: 222: 210:General Motors 193: 190: 186:traction motor 170:electric motor 168:. It uses an 125: 124: 31: 29: 22: 15: 9: 6: 4: 3: 2: 524: 513: 510: 508: 505: 503: 500: 498: 495: 494: 492: 483: 480: 479: 465: 462: 459: 456: 453: 450: 447: 444: 441: 438: 435: 432: 429: 426: 423: 420: 417: 416:Honda Insight 414: 411: 407: 404: 403: 400: 397:IMA-equipped 395: 383: 379: 375: 372:rank-mounted 371: 367: 364: 361: 357: 353: 350:lternator or 349: 345: 341: 337: 334: 331: 327: 323: 319: 316: 313: 309: 305: 301: 297: 294: 291: 287: 283: 279: 276: 273: 269: 265: 261: 258: 257: 251: 249: 238: 236: 231: 228:The IMA uses 221: 219: 215: 211: 207: 203: 199: 189: 187: 183: 182:starter motor 179: 175: 171: 167: 163: 159: 155: 151: 147: 139: 131: 121: 118: 110: 99: 96: 92: 89: 85: 82: 78: 75: 71: 68: –  67: 63: 62:Find sources: 56: 52: 48: 42: 41: 37: 32:This article 30: 26: 21: 20: 381: 377: 373: 369: 365: 359: 355: 351: 347: 343: 339: 335: 329: 325: 321: 317: 311: 307: 303: 299: 295: 289: 285: 281: 277: 271: 267: 263: 259: 244: 227: 198:Civic Hybrid 195: 180:to act as a 178:transmission 149: 145: 144: 113: 107:October 2023 104: 94: 87: 80: 73: 61: 45:Please help 33: 466:(2013-2014) 460:(2010-2016) 454:(2008-2016) 448:(2005-2007) 442:(2003-2015) 430:(2010-2014) 410:concept car 254:Other names 491:Categories 471:References 458:Honda CR-Z 406:Honda J-VX 376:ntegrated 342:rankshaft 328:lternator 310:lternator 302:ntegrated 284:ntegrated 266:ntegrated 248:alternator 158:hybrid car 77:newspapers 362:lternator 292:lternator 208:(HSD) or 34:does not 384:enerator 354:ombined 324:ombined 274:enerator 241:Starting 192:Overview 380:tarter 358:tarter 346:tarter 306:tarter 288:tarter 270:tarter 162:Insight 91:scholar 55:removed 40:sources 408:(1997 332:tarter 235:engine 202:Toyota 93:  86:  79:  72:  64:  507:Honda 314:amper 154:Honda 152:) is 98:JSTOR 84:books 366:CISG 296:ISAD 212:and 188:. 176:and 70:news 38:any 36:cite 336:CSA 318:CAS 278:ISA 260:ISG 216:'s 204:'s 156:'s 150:IMA 49:by 493:: 368:: 338:: 320:: 298:: 280:: 262:: 412:) 382:G 378:S 374:I 370:C 360:A 356:S 352:C 348:A 344:S 340:C 330:S 326:A 322:C 312:D 308:A 304:S 300:I 290:A 286:S 282:I 272:G 268:S 264:I 120:) 114:( 109:) 105:( 95:· 88:· 81:· 74:· 57:. 43:.

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Honda
hybrid car
Insight
parallel hybrid
electric motor
internal combustion engine
transmission
starter motor
traction motor
Civic Hybrid
Toyota
Hybrid Synergy Drive
General Motors
DaimlerChrysler
Global Hybrid Cooperation

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